问题：有关六氨合钙的问题
类型：求助 (悬赏分:3分)
提问：笨笨
等级：▲
版块：无机化学(mitang,lmybenny,wanghong,llscmary,abingchem,)
信誉：86%
回复：18
阅读：2319
时间：2004-11-20 15:00:48 编辑加入/取消收藏订制/取消短消息举报该贴

高手大大们，如何制备六氨合钙，或者什么地方能够买到六氨合钙。急盼答复！

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 15:42:12 编辑	1楼
六氨合钙？什么钙？

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 15:43:09 编辑	2楼
是不是氯化钙？

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 15:45:08 编辑

3楼

Entry Name: Calcium chloride (CaCl2) hexahydrate
Synonym(s): Calcium chloride hexahydrate. Hexaaquacalcium dichloride
Chapman Hall Number: KCB89-D
CAS Registry Number: 7774-34-7
CaCl2.6H2O

Molecular Formula: CaCl2H12O6
Molecular Weight: 219.075
Accurate Mass: 217.963685
Percentage Composition: Ca 18.29%; Cl 32.37%; H 5.52%; O 43.82%
General Statement: Hexagonal struct. isotypic with SrCl2.6H2O. Consists of linear aquo-cations built from tricapped trigonal prismatic Ca(H2O)9 groups sharing their basal faces
Source/Synthesis: Cryst. from aq. CaCl2 between the eutectic temp. (49.7) and 29.2
Use/Importance: Heat storage agent; eutectic mixt. with MgCl2.6H2O or MgBr2.H2O melt at 25 and 17 respectively
Physical Description: Colourless deliquescent, trigonal cryst.
Solubility: V. sol. H2O (279 g per 100 cm3 at 0; 536 g per 100 cm3 at 20); sol. EtOH
Other Data: Dec. on heating with loss of H2O. Hf 2608 kJ mol1; Gf 2205 kJ mol1; S 285 J K1 mol1
RTECS Accession Number: EV9830000

Aldrich: 44290-9
Fluka:
RCB_CT,90855Variant: Mineral-form
Synonym(s): Antarcticite
Chapman Hall Number: KCB90-X
CAS Registry Number: 29854-80-6
Molecular Formula: CaCl2H12O6
Molecular Weight: 219.075
Accurate Mass: 217.963685
Percentage Composition: Ca 18.29%; Cl 32.37%; H 5.52%; O 43.82%
Source/Synthesis: Occurs in brine of Don Juan Pond, Victoria Land, Antarctica, and Bristol Dry Lake, San Bernardino County, California
Physical Description: Colourless brittle
References:
Gmelin Handbook Inorg. Chem., Syst. No. 28, 1957, B2, 464 (rev, bibl)
Buzagh-Gere, E. et al., Z. Anorg. Allg. Chem., 1973, 400, 37 (thermal dec.)
Dubessy, J. et al., Chem. Geol., 1982, 37, 137 (Raman)
Schroeder, J., CA, 1985, 103, 144804 (use)
Kimura, H. et al., Enerugi, Shigen, 1985, 6, 528 (use)
Kimura, H. et al., Ind. Eng. Chem. Fundam., 1985, 24, 192; CA, 1985, 102, 175305 (ir)
Argon, P.A. et al., Acta Cryst. C, 1986, 42, 141 (cryst struct, nd)
Meisingset, K.K. et al., J. Chem. Thermodyn., 1986, 18, 159 (thermodynamics, phase trans)

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 15:45:57 编辑

4楼

回复人：笨笨,▲ () 时间：2004-11-20 15:46:56 编辑	5楼
不是氯化钙，是Ca(NH3)6,是一种导电性的固体，但是查不到进一步的资料，据说是Ca在液氨中的溶液蒸发后可得，但我不知道怎么样才能使氨气在液态下与Ca反应。

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 15:57:34 编辑	6楼
是哪一年出来的产品？

回复人：kez,▲▲▲ (我为人人，人人为我) 时间：2004-11-20 16:03:50 编辑	7楼
直接不能反应吗？钙金属是比较活泼的金属，比镁，锌，铁都强

回复人：笨笨,▲ () 时间：2004-11-20 16:08:12 编辑	8楼
不知道是那一年，应该是能直接反应，但是需在液氨状态下，在氨水里钙好象跟水先反应了，我不知道怎么保证氨保持在液态和钙反应

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 16:09:10 编辑

9楼

你有没有查CA？

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

95:230934
Anomalous magnetic susceptibilities of the alkaline earth hexammines.
Mobley, M. J.; Glaunsinger, W. S. (Dep. Chem., Arizona State Univ.,
Tempe, AZ 85281, USA). Solid State Commun., 40(4), 357-61
(English) 1981. CODEN: SSCOA4. ISSN: 0038-1098. DOCUMENT
TYPE: Journal CA Section: 77 (Magnetic Phenomena)
The magnetic susceptibility of metallic Ca(NH3)6, Sr(NH3)6 and
Ba(NH3)6 was measured at 2-200 K. Susceptibility of Ca(NH3)6 is
strongly dependent on temp. and exhibits a broad min. near 120 K and
a peak near 10 K. In contrast to Ca(NH3)6, the susceptibilities of
Sr(NH3)6 and Ba(NH3)6 are diamagnetic and decrease rapidly as the
temp. is lowered. At low temps. Ba(NH3)6 has the largest mass
susceptibility of any nonsuperconducting metal.

Keywords

susceptibility alk earth ammine compd
calcium hexammine susceptibility
strontium hexammine susceptibility
barium hexammine susceptibility

Index Entries

Ammines
alk. earth, magnetic susceptibility of
Magnetic susceptibility
of alk. earth hexammines
12133-31-2
19468-83-8
54482-13-2
magnetic susceptibility of

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

95:105889
Deuteron magnetic resonance in hexaammine-D3-calcium: evidence
for a planar ammonia geometry.
Mobley, M. J.; Glaunsinger, W. S.; Marzke, R. F. (Dep. Chem., Arizona
State Univ., Tempe, AZ 85281, USA). Chem. Phys. Lett., 81(1),
159-63 (English) 1981. CODEN: CHPLBC. ISSN: 0009-2614.
DOCUMENT TYPE: Journal CA Section: 73 (Spectra by Absorption,
Emission, Reflection, or Magnetic Resonance, and Other Optical
Properties)
Both 1H resonance in Ca(NH3)6 and D resonance in Ca(ND3)6 were
obsd. at 40-200 K. The extremely long spin-lattice relaxation times and
exceedingly narrow D resonances in Ca(ND3)6 provide strong support
for the nearly planar NH3 geometry found in structural studies of these
metals.

Keywords

NMR calcium ammine structure
spin lattice relaxation calcium ammine

Index Entries

Nuclear magnetic resonance
of calcium hexaammine
Molecular structure
of calcium hexaammine compd.
Magnetic relaxation
spin-lattice, of calcium hexaammine
12133-31-2
57450-08-5
NMR and structure of
12597-73-8
NMR of, in calcium hexaammine

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

93:246575
The specific heat of calcium hexamine, 5K to 150K.
Majors, Truett Jay (Univ. Texas, Austin, TX, USA). 124 pp. Avail. Univ.
Microfilms Int., Order No. 8021472 From: Diss. Abstr. Int. B 1980,
41(4), 1419 (English) 1980. DOCUMENT TYPE: Dissertation CA
Section: 69 (Thermodynamics, Thermochemistry, and Thermal
Properties)
Abstract Unavailable

Keywords

heat capacity calcium hexamine

Index Entries

Heat capacity
of calcium hexamine
12133-31-2
heat capacity of

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

93:185819
Study of the reduction of toluene and o-xylene by calcium
hexaammoniate.
Bazyl'chik, V. V.; Bardyshev, I. I. (Chuv. Gos. Univ., Cheboksary,
USSR). Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, (3), 93-5
(Russian) 1980. CODEN: VBSKAK. ISSN: 0002-3590. DOCUMENT
TYPE: Journal CA Section: 24 (Alicyclic Compounds)
Birch redn. of PhMe and o-xylene with Ca(NH3)6 in Me2CHOH first gave
all possible isomeric methyl- and dimethylcyclohexadienes, resp.,
which were reduced further to the corresponding cyclohexenes.
1-Methyl- and 1,2-dimethyl-1,4-cyclohexadiene were the major products
of the 1st redn. stage, and 1-methyl- and 1,2-, 2,3- and
3,4-dimethyl-1-cyclohexene were obtained from the 2nd stage.

Keywords

redn toluene xylene calcium hexaammoniate
Birch redn toluene xylene
cyclohexadiene cyclohexene methyl

Index Entries

Birch reduction
of toluene and xylene with calcium hexaammoniate
12133-31-2
Birch redn. of toluene and xylene with
1489-56-1
1489-57-2
4313-57-9
formation and redn. of, in Birch redn. of toluene with calcium
hexaammoniate
1489-54-9
4430-91-5
17351-28-9
38747-81-8
52944-48-6
formation and redn. of, in Birch redn. of xylene with calcium
hexaammoniate
591-47-9
591-48-0
591-49-1
1674-10-8
1759-64-4
2808-72-2
4300-00-9
prepn. of
108-88-3, reactions
1330-20-7, reactions
redn. of, with calcium hexaammoniate

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

93:70912
Study of the ethynylation of methyl vinyl ketone.
Zaritskii, V. V.; Usorov, M. I.; Bakirov, A. R.; Samokhvalov, G. I. (Vses.
Nauchno-Issled. Vitam. Inst., Moscow, USSR). Khim.-Farm. Zh., 14(2),
84-7 (Russian) 1980. CODEN: KHFZAN. ISSN: 0023-1134.
DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds)
The title reaction was carried out by successive rapid addn. of Ca,
C2H2 and MeCOCH:CH2 (I) in PhMe to liq. NH3 at -50 to -40?to give
75-6% HCYCCMe(OH)CH:CH2 after hydrolysis. Analogous results
were obtained with a suspension of Ca(NH2)2 instead of Ca(NH3)6 (II).
The heat of reaction for II formation, II and Ca(NH2)2 conversion to
Ca(CYCH)2 (III) and III reaction with I were ~7.5, ~70, ~9, and ~12
kcal/mol, resp.

Keywords

ethynylation methyl vinyl ketone thermochem

Index Entries

Ethynylation
of Me vinyl ketone, mechanism and thermochem. of
Thermodynamics
of ethynylation of Me vinyl ketone via hexaamminecalcium and
calcium amide
78-94-4, reactions
ethynylation of, mechanism and thermochem. of
37501-19-2
formation of, and ethynylation of Me vinyl ketone with, thermochem.
of
12133-31-2
23321-74-6
prepn. and reaction of, with acetylene, in ethynylation of Me vinyl
ketone, thermochem. of
3230-69-1
prepn. of, by ethynylation of Me vinyl ketone, mechanism and
thermochem. of
74-86-2, reactions
reaction of, with hexaamminecalcium and calcium amide, in
ethynylation of Me vinyl ketone, thermochem. of

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(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

93:46834
Study of compounds of the o-menthane series. XIII. Mechanism of
reduction of o- and p-cymenes by calcium hexaammoniates.
Bazyl'chik, V. V.; Bardyshev, I. I.; Fedorov, P. I. (Inst. Fiz.-Org. Khim.,
Minsk, USSR). Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, (6), 82-5
(Russian) 1979. CODEN: VBSKAK. ISSN: 0002-3590. DOCUMENT
TYPE: Journal CA Section: 30 (Terpenoids)
The title redns. proceed more rapidly in isopropanol than in hexane.
The predominant reaction is 1,4-hydrogenation to give menthadienes
with nonconjugated double bonds. In isopropanol these menthadienes
are not isomerized, but in hexane isomerization occurs to give the
conjugated menthadienes, which are rapidly reduced to menthenes.

Keywords

cymene redn calcium hexaammoniate
solvent effect redn cymene

Index Entries

Reduction
of cymene isomers by calcium hexaammoniate, solvent effect on
Solvent effect
on redn. of cymene isomers by calcium hexaamoniate
12133-31-2
redn. of cymene isomers by, solvent effect on
99-85-4
99-86-5
527-84-4
60264-83-7
redn. of, by calcium hexaammoniate, solvent effect on
527-83-3
72188-50-2
redn. of, by calcium hexaamoniate

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

93:34153
Inelastic neutron scattering study of calcium hexaammine.
Von Dreele, R. B.; Glaunsinger, W. S.; Chieux, P.; Damay, P. (Dep.
Chem., Arizona State Univ., Tempe, AZ 85281, USA). J. Phys. Chem.,
84(10), 1172-3 (English) 1980. CODEN: JPCHAX. ISSN: 0022-3654.
DOCUMENT TYPE: Journal CA Section: 73 (Spectra by Absorption,
Emission, Reflection, or Magnetic Resonance, and Other Optical
Properties)
The vibrational spectrum of Ca(NH3)6 was investigated by using the
IN-1 Be filter inelastic neutron spectrometer at the Institut
Laue-Langevin. A strong band obsd. at 450 cm-1 was assigned to the
NH3 rocking mode (rr) and 3 weak bands at 820, 910, and 1215 cm-1
were assigned to the 3 bending modes (2dA' and dA'', resp.) allowed in
a distorted NH3 mol. These assignments and the large shifts in energy
for these transitions from those found in metal-ammine complexes are
consistent with the structure obsd. previously by neutron diffraction and
NMR spectroscopy.

Keywords

neutron scattering calcium ammine
vibrational spectra calcium ammine

Index Entries

Ammines
calcium, inelastic neutron scattering study of
12133-31-2
inelastic neutron scattering study of
12586-31-1
inelastic scattering of, by calcium hexaammine

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

92:224772
Electrical resistivity of hexaamminecalcium, hexaamminestrontium, and
hexaamminebarium.
Mobley, M. J.; Glaunsinger, W. S.; Thompson, J. C. (Dep. Chem.,
Arizona State Univ., Tempe, AZ 85281, USA). J. Phys. Chem., 84(10),
1168-71 (English) 1980. CODEN: JPCHAX. ISSN: 0022-3654.
DOCUMENT TYPE: Journal CA Section: 76 (Electric Phenomena)
Detns. were made on polycryst. samples at 4-330 K by an
electrodeless technique. The compds. are metallic with residual
resistivities of 5, 22, and 28 mW-cm for Ca(NH3)6, Sr(NH3)6, and
Ba(NH3)6, resp. The Ca compd. has a sharp increase and inflection in
its resistivity at 37 K. A less pronounced inflection occurs in Ba(NH3)6
at 42 K. Slight inflections are indicated in Sr(NH3)6 at 23 and 69 K.
These inflections were attributed to phase transitions. Melting and a
subsequent increase in cond. occur in Ca(NH3)6 at about 265 K. The
temp. dependences for the resistivities correlate well with the
conduction-ESR line width data on Ca(NH3)6 and Sr(NH3)6. The data
suggest these solids have low Debye temps. and that NH3 diffusion
contributes significantly to the electron scattering at >100 K.
Magnetoresistance was obsd. for Ca(NH3)6 at 4.2 K. The field
dependence of the resistivity followed a 1.3 power law indicative of an
uncompensated metal. No magnetoresistance was observable for the
Sr and Ba compds.

Keywords

resistance alk earth hexaammine
ammine alk earth resistance
cond alk earth hexaammine
Debye temp alk earth hexaammine
magnetoresistance alk earth hexaammine
calcium hexaammine resistance
strontium hexaammine resistance
barium hexaammine resistance

Index Entries

Debye temperature
Electric resistance
Magnetoresistance
of alk. earth metal hexaammines
Diffusion
of ammonia, in alk. earth hexaammines
Electron, conduction
scattering of, in alk. earth hexaammines
Ammines
alk. earth, elec. resistance and magnetoresistance of
Electron spin resonance
conduction, of alk. earth metal hexaammines
7664-41-7, properties
diffusion of, in alk. earth hexaammine compds.
12133-31-2
19468-83-8
54482-13-2
elec. resistance and magnetoresistance of

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

92:223790
Electron spin resonance study of metal-ammonia compounds.
Robb, F. Y.; Glaunsinger, W. S. (Dep. Chem., Arizona State Univ.,
Tempe, AZ 85281, USA). J. Phys. Chem., 84(10), 1176 (English)
1980. CODEN: JPCHAX. ISSN: 0022-3654. DOCUMENT TYPE:
Journal CA Section: 73 (Spectra by Absorption, Emission, Reflection,
or Magnetic Resonance, and Other Optical Properties)
ESR in the alk. earth and lanthanide hexaammines M(NH3)6 (M = Ca,
Sr, Ba, Eu, Yb) was investigated in the range 8.5-300 K at X-band.
Conduction ESR (CESR) was obsd. in Ca(NH3)6 and Sr(NH3)6. CESR
line shapes are in excellent agreement with Dyson's theory, which
permitted a precise detn. of the conduction-electron g values, spin
relaxation time (T2), and spin diffusion time(TD). In Ca(NH3)6 and
Sr(NH3)6 the g values are temp. independent and equal to 2.0018 and
2.0113 and the peak-to-peak line widths (DHp-p) at 300 K are 44 and
320 G, resp. A general decrease in DHp-p with decreasing temp. is
interrupted by a min. in DHp-p near 100 K, which is probably assocd.
with rapid NH3 diffraction.

Keywords

ESR metal ammonia compd
conduction ESR ammonia calcium strontium
alk earth ammonia ESR
rare earth ammonia ESR

Index Entries

Electron, conduction
ESR of, in calcium and strontium hexaammines
Ammines
alk. earth and rare earth, ESR and conduction ESR of
Electron spin resonance
of alk. earth and rare earth hexaammine compds.
Electron spin resonance
conduction-electron, of alk. earth and rare earth hexaammine
compds.
12133-31-2
19468-83-8
ESR and conduction ESR of
25657-86-7
25806-32-0
54482-13-2
ESR of

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

92:223788
Spin-lattice relaxation in the alkaline earth hexaammines.
Mobley, M. J.; Glaunsinger, W. S.; Marzke, R. F. (Dep. Chem., Arizona
State Univ., Tempe, AZ 85281, USA). J. Phys. Chem., 84(10),
1129-33 (English) 1980. CODEN: JPCHAX. ISSN: 0022-3654.
DOCUMENT TYPE: Journal CA Section: 73 (Spectra by Absorption,
Emission, Reflection, or Magnetic Resonance, and Other Optical
Properties)
The proton spin-lattice relaxation times T1 of Ca(NH3)6, Sr(NH3)6, and
Ba(NH3)6 were measured at 8 MHz in the range 30-200 K by using std.
pulsed NMR techniques. Dispersed samples were prepd. from ingots
of the compds. and were mixed with alumina powder to ensure elec.
isolation of the metal grains. The samples exhibited T1 behavior
differing significantly from that of NH3. Three different mechanisms for
nuclear relaxation appear to operate in this temp. range: (1) rotational
diffusion of NH3 at high temps. (above ~100 K); (2) activated rotation of
NH3 about the pseudo C3 axis in the intermediate temp. range
(~50-100 K); and (3) rotational tunneling which results in temp.
independent T1 values in the low temp. range (below ~50 K). Activation
barriers to NH3 diffusion and rotation were detd. Nonexponential
relaxation was obsd. in the vicinity of the I1 min. These samples
exhibited asym. lines shapes expected of metal powders with an av.
particle size somewhat larger than their skin depths. Knight shifts in the
narrow line region were detd. to be <10 ppm in agreement with recent
measurements by cw techniques. The line widths also agreed, to within
exptl. error, with previously published cw data.

Keywords

spin lattice relaxation alk ammine
calcium hexaammine spin lattice relaxation
strontium hexaammine spin lattice relaxation
barium hexaammine spin lattice relaxation
NMR alk earth hexaammine

Index Entries

Knight shift
Nuclear magnetic resonance
of alk. earth hexaammine
Magnetic relaxation
spin-lattice, of alk. earth hexaammine
12133-31-2
19468-83-8
54482-13-2
spin-lattice relaxation times of

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

92:129088
New method of obtaining 1,4-dihydroderivatives of benzene.
Bazyl'chik, V. V.; Bardyshev, I. I.; Fedorov, P. I.; Midakova, L. E.
(Chuvash State Univ., Cheboksary 428015, USSR). Int. Congr. Essent.
Oils, [Pap.], 7th, Meeting Date 1977, Volume 7, 248-50. Japan Flavor
Fragrance Manufactures' Assoc.: Tokyo, Japan. (English) 1979.
CODEN: 41XWA4. DOCUMENT TYPE: Conference CA Section: 30
(Terpenoids)
p-Cymene, toluene, o-cymene, and o-cymenol were reduced with Ca
hexaammoniate in Me2CHOH to give mixts. of hydrobenzenes. This
method is more convenient and effective than Birch's method, which
requires low temp., uses great amts. of NH3(l.), and could result in
polymn.

Keywords

cymene redn Ca hexammoniate
toluene redn Ca hexammoniate
cymenol redn Ca hexammoniate

Index Entries

Reduction
of benzene derivs. by calcium hexaammoniate
1121-18-2
formation of, in hydrolysis of methoxymethylcyclohexadiene
583-60-8
formation of, in hydrolysis of methoxymethylcyclohexene
99-85-4
15582-48-6
15582-49-7
15582-50-0
60264-83-7
60264-85-9
formation of, in redn. of cymene
73041-87-9
prepn. and hydrogenation of
1728-38-7
69697-74-1
prepn. and hydrolysis of
4313-57-9
prepn. and isomerization of
1489-56-1
prepn. and redn. of
591-47-9
591-48-0
591-49-1
73041-88-0
prepn. of
12133-31-2
redn. by, of benzene derivs.
99-87-6
108-88-3, reactions
527-84-4
62835-97-6
redn. of, by calcium hexaammoniate

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

90:121810
New reagent for preparing unsaturated cyclic ketones.
Bazyl'chik, V. V.; Overchuk, T. N.; Fedorov, P. I. (Chuvash. Gos. Univ.,
Cheboksary, USSR). Zh. Org. Khim., 14(10), 2085-8 (Russian) 1978.
CODEN: ZORKAE. ISSN: 0514-7492. DOCUMENT TYPE: Journal
CA Section: 30 (Terpenoids)
The system Ca(NH3)6-Me2CHOH-Me2CHCH2OH was a more effective
reducing agent for obtaining unsatd. cyclic ketones from phenol ethers
than the Birch redn. or redn. with Li-H2NCH2CH2NH2-Me2CHOH. Thus
thymol Me ether (I) was treated with Ca(NH3)6 system at 0-5?in
petroleum ether to give 63.5% piperitone (II), 5.5% menthone, 1%
isomenthone, 25% thymol, and 5% p-cymene.

Keywords

ketone cyclic unsatd terpene
calcium hexaammoniate redn reagent
piperitone
phenol ether redn

Index Entries

Reduction
of phenol ethers by calcium hexaammoniate
Ketones, preparation
cyclic, unsatd., prepn. of, by redn. of phenol ethers with calcium
hexaammoniate
89-80-5
89-81-6
99-87-6
491-07-6
formation of, by redn. of thymol Me ether by calcium
hexaammoniate
89-83-8
methylation of
1076-56-8
prepn. and redn. by calcium hexaammoniate
12133-31-2
redn. of phenol ethers by, in presence of iso-Pr and iso-Bu alcs.

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1999 American Chemical Society All Rights Reserved.

89:109999
Study of compounds of the o-menthane series. VI. New method of
preparing o-menthadienes.
Bazyl'chik, V. V.; Fedorov, P. I.; Ryabushkina, N. M. (Chuv. Gos. Univ.,
Cheboksary, USSR). Zh. Org. Khim., 14(5), 969-73 (Russian) 1978.
CODEN: ZORKAE. ISSN: 0514-7492. DOCUMENT TYPE: Journal
CA Section: 30 (Terpenoids) Section cross-reference(s): 25
Redn. of o-cymene (I) by Ca(NH3)6 in alcs. gave mixts. contg.
menthadienes and menthenes. In an example I was reduced in
isopentyl alc. to give o-mentha-1,4-diene 43, o-mentha-3,6-diene 7,
o-menth-6-ene 9.5, o-menth-1-ene 26, o-menth-2-ene 14, and
unidentified substances 0.5% with a 95% conversion of I.

Keywords

redn cymene calcium hexamine
ortho menthadiene

Index Entries

Reduction
of o-cymene by calcium hexamine in presence of alcs.
Alcohols, uses and miscellaneous
redn. of o-cymene by calcium hexamine in presence of
74-88-4, reactions
Grignard reaction of, with Et o-toluate
87-24-1
Grignard reaction of, with Me iodide
15582-48-6
15582-49-7
15582-50-0
60264-83-7
60264-85-9
formation of, in redn. of o-cymene by calcium hexamine
7572-79-4
prepn. and dehydration of
7399-49-7
prepn. and hydrogenation of
123-51-3
67-63-0, uses and miscellaneous
71-23-8, uses and miscellaneous
71-36-3, uses and miscellaneous
71-41-0, uses and miscellaneous
75-65-0, uses and miscellaneous
78-83-1, uses and miscellaneous
redn. of o-cymene by calcium hexamine in presence of
12133-31-2
redn. of o-cymene in presence of alcs. and
527-84-4
redn. of, by calcium hexamine in presence of alcs.

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

89:50956
Structures and molecular motions in alkaline earth hexammines.
Glausinger, W. S.; White, T. R.; Von Dreele, R. B.; Gordon, D. A.;
Marzke, R. F.; Bowman, A. L.; Yarnell, J. L. (Dep. Chem., Arizona State
Univ., Tempe, Ariz., USA). Nature (London), 271(5644), 414-17
(English) 1978. CODEN: NATUAS. ISSN: 0028-0836. DOCUMENT
TYPE: Journal CA Section: 73 (Spectra by Absorption, Emission,
Reflection, or Magnetic Resonance, and Other Optical Properties)
Mol. motion in the alk. earth hexaammines was studied by NMR. Onset
temps. for the weak- and strong-narrowing transitions were given, the
strong narrowing transition in the hexaammines being caused by NH3
diffusion and the weak narrowing transition by NH3 rotation. A
decrease in activation energy with increasing mol. wt. followed a
corresponding increase in cell vol. which increased the vol. available for
NH3 diffusion.

Keywords

mol motion alk earth hexaammine
ammine alk earth mol motion

Index Entries

Molecular dynamics
of ammonia, in alk. earth hexaammines
Ammines
alk. earth, mol. motion in
12133-31-2
19468-83-8
54482-13-2
mol. motion in

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

89:25107
Olefin oxide polymerization catalyst.
Goeke, George Leonard; Karol, Frederick John (Union Carbide Corp.,
USA). Ger. Offen. DE 2750208 18 May 1978, 17 pp. (German).
(Germany). CODEN: GWXXBX. CLASS: IC: C08G065-10.
PRIORITY: US 76-741013 11 Nov 1976. DOCUMENT TYPE: Patent
CA Section: 35 (Synthetic High Polymers)
The title catalysts, which give increased productivity and mol. wt., are
prepd. by mixing Ca, NH3, an alkylene oxide, and an org. nitrile to form
a slurry of modified hexaamminecalcium in NH3, evapg. the excess
NH3, and heating the solid residue at 150-225? Thus, 1 mol fresh Ca
turnings were added to 100 mol anhyd. NH3 at -33.5?to form a blue
soln., which was treated with propylene oxide (I) [75-56-9] and MeCN
[75-05-8] at I-MeCN mole ratio 3:2 and mole ratio of I + MeCN to Ca
1:1, freed of NH3 at 96? and aged 3 h at 200? The product was used
to polymerize oxirane at 31?in dodecane, giving 436 parts
poly(ethylene oxide) [25322-68-3]/part Ca, compared with 187
parts/part Ca for a control not heat aged.

Keywords

polyoxyethylene catalytic manuf
ammine calcium polymn catalyst
oxirane polymn catalytic
ethylene oxide catalytic polymn

Index Entries

Polymerization catalysts
acetonitrile-hexaamminecalcium-propylene oxide, for ethylene
oxide
75-05-8, uses and miscellaneous
75-56-9, uses and miscellaneous
12133-31-2
catalysts, for polymn. of ethylene oxide
25322-68-3
manuf. of, catalysts for

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

88:121402
Reduction of p-cymene by calcium hexaammoniate in the presence of
weak protic acids.
Bazyl'chik, V. V.; Fedorov, P. I. (Chuvash. Gos. Univ. im. Ul'yanova,
Cheboksary, USSR). Zh. Prikl. Khim. (Leningrad), 50(8), 1910-12
(Russian) 1977. CODEN: ZPKHAB. ISSN: 0044-4618. DOCUMENT
TYPE: Journal CA Section: 30 (Terpenoids)
Redn. of p-cymene by calcium hexaammoniate in presence of alcs.,
i.e., Me2CHOH, Me2CHCH2OH, cyclohexanol, Me3COH 2-5 min at 0-5?
gave (for p-cymene:Me2CHOH, 1:1) g-terpinene 81.5, a-terpinene 0.5,
carvomenthene 3.5, trans-p-menth-2-ene 1.0, and
cis-p-menthane-p-menth-3-ene 13.5%.

Keywords

redn cymene calcium hexaammoniate
gamma terpinene

Index Entries

Reduction
of p-cymene by calcium hexaammoniate in presence of primary,
secondary, and tertiary alcs.
Alcohols, uses and miscellaneous
aliph., redn. of p-cymene by calcium hexaammoniate in presence of
99-85-4
99-86-5
500-00-5
1124-26-1
1678-82-6
5502-88-5
6069-98-3
formation of, in redn. of p-cymene by calcium hexaammoniate in
presence of aliph. alcs.
67-63-0, uses and miscellaneous
75-65-0, uses and miscellaneous
78-83-1, uses and miscellaneous
108-93-0, uses and miscellaneous
redn. of p-cymene by calcium hexaammoniate in presence of
12133-31-2
redn. of p-cymene by, in presence of aliph. alcs.
99-87-6
redn. of, by calcium hexaammoniate in presence of aliph. alcs.

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104:130417
Study on the modification of soluble poly(epichlorohydrin) with
2-mercaptoethanol and thioglycolic acid.
Lamot, Ryszard (Jagellonian Univ., Kracow 30-060, Pol.). Makromol.
Chem., 187(2), 273-8 (English) 1986. CODEN: MACEAK. ISSN:
0025-116X. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of
Synthetic High Polymers)
DMF-sol. polyepichlorohydrin [24969-06-0] was prepd. with mol. wt.
(3.7-14) ?104, using a complex of epichlorohydrin with
hexaamminecalcium. The polymers were modified by reaction with
2-mercaptoethanol or thioglycolic acid. The yields of these reactions
were 40-60%. The drop of mol. wt. due to modification was 3.8-48.1%.
The structure of the modified polymers was confirmed by elemental
analyses and thermogravimetric and mass spectroscopic
investigations. These chem. modifications carried out with
polyepichlorohydrin led to water-sol. products.

Keywords

polyepichlorohydrin mercaptoethanol condensate
thioglycolic acid condensate polyepichlorohydrin

Index Entries

Polymerization catalysts
hexaamminecalcium, for epichlorohydrin
Mass spectra
of thiol compd.-polyepichlorohydrin reaction products
12133-31-2
catalysts, for polymn. of epichlorohydrin
60-24-2, reaction products with polyepichlorohydrin
68-11-1, reaction products with polyepichlorohydrin
24969-06-0, reaction products with thiols
prepn. of water-sol.
24969-06-0
prepn. of, in presence of hexaamminecalcium, mol. wt. in relation to

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

101:111481
Poly(epichlorohydrin)s with improved solubility obtained with a modified
hexaamminecalcium catalyst.
Lamot, Ryszard (Jagellonian Univ., Krakow 30-060, Pol.). Makromol.
Chem., Rapid Commun., 5(8), 465-70 (English) 1984. CODEN:
MCRCD4. ISSN: 0173-2803. DOCUMENT TYPE: Journal CA
Section: 35 (Chemistry of Synthetic High Polymers)
The title catalysts were prepd. by the reaction of Ca(NH3)6 with
epoxides in heptane. The relatively low Cl content (4.344.9%) of
Ca(NH3)6 modified with 0.7 mol epichlorchydrin (I) indicated extensive
reaction of CH2Cl groups. The yield of I polymer [24969-06-0] in the
presence of Ca(NH2)2 and of Ca(NH3)6 modified with 0.7 mol ethylene
oxide, I, or MeOH was 42.4, 63.4, 78.2, and 52.1%, resp., and the mol.
wts. were 22,000, 43,000, 61,000, and 37,000, resp. The soly. of the I
polymer prepd. with these catalysts was higher than that of any
previously known, possibly owing to interference of incorporated NH
groups with crystn. The crystallinity of the I polymer was 2-13%,
compared with 38% when polymd. by Et3Al.

Keywords

catalyst polymn epichlorohydrin
oxirane adduct catalyst polymn
acetonitrile adduct catalyst polymn
calcium hexaammine catalyst polymn
crystallinity polyepichlorohydrin soly
soly polyepichlorohydrin polymn catalyst

Index Entries

Polymerization catalysts
hexaamminecalcium-epoxide reaction products, for epichlorohydrin
Crystallinity
of polyepichlorohydrin, polymn. catalysts effect on
75-05-8, reaction products with hexaamminecalcium
75-21-8, reaction products with hexaamminecalcium
106-89-8, reaction products with hexaamminecalcium
12133-31-2, reaction products with epoxides
catalysts, for polymn. of epichlorohydrin
24969-06-0
prepn. of, catalysts for

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

101:82842
Nuclear magnetic resonance evidence for two ammonia rotational
hindering potentials in solid metal hexaammines.
Rawlings, K. B.; Marzke, R. F.; Glaunsinger, W. S. (Dep. Phys., Arizona
State Univ., Tempe, AZ 85287, USA). J. Phys. Chem., 88(17), 3880-5
(English) 1984. CODEN: JPCHAX. ISSN: 0022-3654. DOCUMENT
TYPE: Journal CA Section: 77 (Magnetic Phenomena)
Proton spin-lattice relaxation times T1 and line widths were measured
in all of the alk. earth hexaammines and in Yb(NH3)6 at 4.2-150 K. The
results are interpreted as evidence for the existence of 2 sep. NH3
populations for portions of the range, each population undergoing
hindered rotation in a different hindering potential. One of the
populations is strongly involved in structural phase transitions which are
inferred for Sr(NH3)6 and Ba(NH3)6, while the 2nd is unaffected by them.
The existence of the first population in Ca(NH3)6 and Yb(NH3)6 is taken
as evidence that these 2 compds. also approach, but do not actually
undergo, phase transitions of a similar kind. Details of the complex T1
data are summarized, and relevant results of other studies of the
hexaammines, principally powder neutron diffraction and elec.
resistivity measurements, are cited.

Keywords

NMR metal hexaammine
alk earth hexaammine NMR
ytterbium hexaammine NMR
spin lattice relaxation metal hexaammine
rotation hindering metal hexaammine

Index Entries

Ammines
alk. earth and ytterbium, rotational hindering in, NMR in relation to
Nuclear magnetic resonance
of alk. earth and ytterbium hexaammines, rotational hindering
potentials in relation to
Potential energy and function
rotational hindering, in alk. earth and ytterbium hexaammines, NMR
study of
Molecular rotation
hindered, in alk. earth and ytterbium hexaammines, NMR study of
Magnetic relaxation
spin-lattice, in alk. earth and ytterbium hexaammines, rotational
hindering potentials in relation to
12133-31-2
19468-83-8
25806-32-0
54482-13-2
NMR of, rotational hindering potential in relation to

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

101:82713
Magnetic properties of metal-ammonia compounds.
White, T. R.; Hsu, S. P.; Mobley, M. J.; Glaunsinger, W. S. (Dep. Chem.,
Arizona State Univ., Tempe, AZ 85287, USA). J. Phys. Chem., 88(17),
3890-5 (English) 1984. CODEN: JPCHAX. ISSN: 0022-3654.
DOCUMENT TYPE: Journal CA Section: 77 (Magnetic Phenomena)
The magnetic susceptibilities of Li(NH3)4 and M(NH3)6, where M is Ca,
Sr, Ba, Eu, or Yb, as well as the elemental metals and pure NH3 were
measured at 2-300 K.. The susceptibility of Li(NH3)4 exhibits a max.
near 10 K, suggesting antiferromagnetic ordering, and Curie-Weiss
behavior at 15-82 K. When the temp. is increased further, an abrupt
increase in the susceptibility is obsd. at 82 K which is the result of a
solid-solid phase transition. At 89 K, the m.p., the susceptibility
increases again. It is weakly dependent on temp. above 89 K. The
susceptibility of Ca(NH3)6 exhibits a max. near 10 K, suggesting
antiferromagnetic ordering, and a broad min. near 120 K. The
susceptibilities of Sr(NH3)6 and Ba(NH3)6 increase with temp. and are
diamagnetic in the range studied. Superimposed on these trends are
sharp decreases in the susceptibilities at 61 and 20 K for Sr(NH3)6 and
Ba(NH3)6, resp. The susceptibility of Eu(NH3)6 obeys a near-Curie law
down to 10 K. Below 10 K, the susceptibility flattens out, suggesting
that the Eu2+ become weakly coupled by short-range antiferromagnetic
interactions. The near-Curie behavior below 50 K exhibited by the
susceptibility of Yb(NH3)6 may be due to a partial localization of
conduction electrons. The remarkable magnetic behavior of
metal-ammonia compds. may be due in part to strong electron-electron
interactions in these expanded metals.

Keywords

susceptibility metal ammonia compd
calcium ammonia compd susceptibility
strontium ammonia compd susceptibility
barium ammonia compd susceptibility
europium ammonia compd susceptibility
ytterbium ammonia compd susceptibility
lithium ammonia compd susceptibility

Index Entries

Ammines
alk. earth and ytterbium, magnetic properties of
Magnetic susceptibility
of metal-ammonia compds., temp. dependences of
12133-31-2
19453-81-7
19468-83-8
25657-86-7
25806-32-0
54482-13-2
magnetic susceptibility of, temp. dependence of

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

101:79450
Heat capacity of calcium hexammine and strontium hexammine.
Jacobs, D. A.; Majors, T. J.; McCormick, W. D. (Dep. Phys., Univ.
Texas, Austin, TX 78712, USA). J. Phys. Chem., 88(17), 3877-80
(English) 1984. CODEN: JPCHAX. ISSN: 0022-3654. DOCUMENT
TYPE: Journal CA Section: 69 (Thermodynamics, Thermochemistry,
and Thermal Properties)
The heat capacities (Cp) of the metallic compds. calcium hexammine
[12133-31-2] and strontium hexammine [19468-83-8] were detd. at
1.8-150 K by conventional heat-pulse calorimetry. No sharp anomalies,
indicative of a phase transition, are obsd. in the Ca compd., but there is
a rapid change in slope of the Cp vs. T curve near 40 K. The Sr compd.
exhibits a single sharp anomaly at 38.6 ?0.2 K. The Debye temp. of Sr
hexammine is 24 ?2 K. The molar heat capacities of these
hexammines are ~15R, where 3R is from the Debye modes, by 40 K,
indicating the existence of many low-energy rotational and vibrational
modes.

Keywords

heat capacity calcium strontium ammine
Debye temp strontium ammine

Index Entries

Heat capacity
of calcium and strontium hexammines
Debye temperature
of strontium hexammine
19468-83-8
heat capacity and Debye temp. of
12133-31-2
heat capacity of

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101:79104
Quantum and diffusional rotation of ammonia in hexaamminecalcium
as observed by incoherent neutron scattering.
Leclerco, Francoise; Damay, Pierre; Chieux, Pierre (Lab. Chim. Phys.,
EHEI, Lille 59046, Fr.). J. Phys. Chem., 88(17), 3886-90 (English)
1984. CODEN: JPCHAX. ISSN: 0022-3654. DOCUMENT TYPE:
Journal CA Section: 65 (General Physical Chemistry)
The rotational motion was studied of NH3 in Ca(NH3)6 by inelastic
neutron scattering. Anal. of the high-temp. spectra indicates that there
are probably two kinds of motion, a rapid uniaxial rotation about the
Ca-H axis and a slow reorientation of the Ca(NH3)6 about the center of
mass. A complete calcn. for this type of motion has yet to be done to
confirm the model. Four inelastic broad lines are visible at low temp.;
they can be interpreted by quantum tunneling of the protons, but a detn.
of the structure at low temp. is necessary to interpret the position of the
lines and to explain the broadening.

Keywords

ammonia rotation calcium ammine
diffusional rotation ammonia calcium ammine

Index Entries

Molecular rotation
of ammonia, in hexaamminecalcium
Diffusion
rotation by, of ammonia in hexaamminecalcium
12133-31-2
quantum and diffusional rotation of ammonia in, neutron scattering
in
7664-41-7, properties
quantum and diffusional rotation of, in hexaamminecalcium, neutron
scattering in
12586-31-1
scattering of, quantum and diffusional rotation of ammonia in
hexaamminecalcium in relation to

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

98:136433
NMR evidence for two ammonia rotational hindering potentials in solid
hexaamminecalcium (Ca(NH3)6).
Rawlings, K. B.; Marzke, R. F.; Glaunsinger, W. S. (Dep. Phys., Arizona
State Univ., Tempe, AZ 85287, USA). Chem. Phys. Lett., 95(2),
114-18 (English) 1983. CODEN: CHPLBC. ISSN: 0009-2614.
DOCUMENT TYPE: Journal CA Section: 77 (Magnetic Phenomena)
Section cross-reference(s): 65
Proton spin-lattice relaxation times in Ca(NH3)6 were measured at
10-125 K. Three distinct T1 min. were obsd. and attributed to NH3
diffusion and NH3 rotation in 2 different hindering potentials. There is
an appreciable difference in mol. structure between NH3 and ND3 in
this compd.

Keywords

relaxation spin lattice calcium ammine
potential rotation ammonia calcium ammine

Index Entries

Ammines
rotational hindering potentials of, in hexaamminecalcium, NMR of
Molecular rotation
hindered, of ammonia in hexaamminecalcium, potentials for
Potential energy and function
rotational, hindered, for ammonia in hexaamminecalcium
Magnetic relaxation
spin-lattice, in hexaamminecalcium, rotational hindering potentials
in relation to
12133-31-2
ammonia rotational hindering potentials in solid, NMR evidence for
to
7664-41-7, properties
rotational hindering potentials of, in hexaamminecalcium, NMR of

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

98:72458
Study of menthane series compounds. XVI. Reduction of o- and
p-isopropenyltoluenes by calcium hexaammoniates.
Bazyl'chik, V. V. (Chuv. Gos. Univ., Cheboksary, USSR). Zh. Org.
Khim., 18(10), 2099-103 (Russian) 1982. CODEN: ZORKAE. ISSN:
0514-7492. DOCUMENT TYPE: Journal CA Section: 30 (Terpenes
and Terpenoids)
o- And p-Isopropenyltoluenes are reduced by calcium hexaammoniate
in the presence of protic and aprotic solvents principally via a 1,2-addn.
of hydrogen with the formation of the corresponding o- and p-cymenes
and o- and p-menthatrienes, which under the conditions of the reaction
give products of 1,2- and 1,4-addn. of hydrogen. Thus, redn. of
o-isopropenyltoluene in hexane 24 h gave a complex mixt. contg.
o-cymene 94.0, o-1,3-menthadiene 0.1, o-1,4-menthadiene 2.6,
o-1,5-menthadiene 0.1, o-3,6-menthadiene 0.4, o-1-menthene 0.4,
o-2-menthene 0.2, o-6-menthene 0.1, cumene 0.2, and toluene 1.4%.

Keywords

redn isopropenyltoluene calcium hexaammoniate
terpene mono prepn

Index Entries

Solvent effect
in redn. of isopropenyltoluenes by calcium hexaammoniate
Reduction
of isopropenyltoluenes by calcium hexaammoniate
Addition reaction
1,2-, in redn. of isopropenyltoluenes by calcium hexaammoniate
Terpenes and Terpenoids, preparation
mono-, formation of, in redn. of isopropenyltoluenes by calcium
hexaammoniate
98-82-8
108-88-3, preparation
527-83-3
527-84-4
15582-48-6
15582-49-7
15582-50-0
15582-53-3
15733-49-0
60264-83-7
60264-85-9
72188-50-2
formation of, in redn. of o-isopropenyltoluene by calcium
hexaammoniate
99-85-4
99-86-5
99-87-6
500-00-5
586-62-9
586-68-5
1124-25-0
1124-26-1
1124-27-2
1678-82-6
5502-88-5
6069-98-3
81719-66-6
formation of, in redn. of p-isopropenyltoluene by calcium
hexaammoniate
12133-31-2
redn. of isopropenyltoluenes by, monoterpinoids from
1195-32-0
7399-49-7
redn. of, by calcium hexaammoniate

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Copyright (c) 1999 American Chemical Society All Rights Reserved.

97:32507
Ammonia diffusion and proton shifts in the alkaline earth hexaammines.
White, T. R.; Glaunsinger, W. S.; Catterall, R. (Dep. Chem., Arizona
State Univ., Tempe, AZ 85287, USA). Chem. Phys. Lett., 88(5),
517-21 (English) 1982. CODEN: CHPLBC. ISSN: 0009-2614.
DOCUMENT TYPE: Journal CA Section: 77 (Magnetic Phenomena)
Section cross-reference(s): 65
NH3 diffusion and proton shifts in Ca(NH3)6, Sr(NH3)6, and Ba(NH3)6
were studied by using high-resoln. PMR. NH3 diffuses rapidly in these
compds. above u100 K by a hopping mechanism. Proton shifts are
neg. and very small and are interpreted in the light of recent ab initio
calcns. on metal-ammonia complexes.

Keywords

ammonia diffusion alk earth ammine
calcium ammine NMR ammonia diffusion
strontium ammine NMR ammonia diffusion
barium ammine NMR ammonia diffusion
NMR alk earth ammine
proton shift alk earth ammine

Index Entries

Ammines
alk. earth, ammonia diffusion in, NMR in relation to
Nuclear magnetic resonance
of alk. earth hexaammines, ammonia diffusion in relation to
Diffusion
of ammonia in alk. earth hexaammines, NMR study of
12133-31-2
19468-83-8
54482-13-2
NMR of, ammonia diffusion in relation to
7664-41-7, properties
diffusion of, in alk. earth hexaammines, NMR study of

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96:96416
Electron paramagnetic resonance studies of the alkaline earth
hexaammines.
Robb, F. Y.; Glaunsinger, W. S. (Dep. Chem., Arizona State Univ.,
Tempe, AZ 85287, USA). J. Magn. Reson., 46(1), 98-109 (English)
1982. CODEN: JOMRA4. ISSN: 0022-2364. DOCUMENT TYPE:
Journal CA Section: 77 (Magnetic Phenomena)
Conduction ESR (CEPR) was investigated in Ca(NH3)6, Sr(NH3)6, and
Ba(NH3)6 at 8.5-300 K. CEPR lineshapes in Ca(NH3)6 and Sr(NH3)6
are Dysonian, and by analyzing the lineshape the relaxation time, g
shift, and diffusion time were detd. A line-broadening transition, which
is assocd. with rapid NH3 diffusion, occurs below ~120 K in both
compds. However, no CEPR signals could be detected in Ba(NH3)6.
The dominant relaxation mechanism involves the motional modulation
of the spin-orbit coupling between the conduction electrons and
cations. A narrow signal, which may be assocd. with local-moment
formation, also was obsd. in Sr(NH3)6 below ~200 K.

Keywords

conduction electron ESR alk ammine
relaxation magnetic alk ammine
g factor alk ammine

Index Entries

Electron spin resonance
conduction-electron, of alk. earth hexaammines
Magnetic relaxation
spin-lattice, of alk. earth hexaammines, mechanism of
12133-31-2
19468-83-8
54482-13-2
conduction-electron ESR and magnetic relaxation mechanism in

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Copyright (c) 1997 American Chemical Society All Rights Reserved.

113:121507
Neutron scattering investigation of the structure, phase stability and
rotational excitations in the calcium ammine compounds Ca(NH3)n and
Ca(ND3)n as a function of composition (5 ?n ?6.5).
Leclercq, Francoise; Damay, P.; Chieux, P. (Lab. Chim. Phys., Ec.
Hautes Etud. Ind., Lille F-59046, Fr.). J. Phys. Chem., 94(18), 7300-8
(English) 1990. CODEN: JPCHAX. ISSN: 0022-3654. DOCUMENT
TYPE: Journal CA Section: 68 (Phase Equilibriums, Chemical
Equilibriums, and Solutions) Section cross-reference(s): 75
The interpretation of quantum rotational excitations of NH3 or ND3
groups obsd. at low temp. in metal hexaammines M(NH3)n raised
questions about the existence of a stability range instead of a
well-defined stoichiometry for these mol. disordered materials. The
stoichiometry problem is introduced with a crit. review of the Ca-NH3
phase diagram. The structure and the spectroscopic properties were
detd. by powder neutron diffraction and by inelastic neutron scattering,
resp., for both protonated and deuterated compds. as a function of
compn. (5.0 < n < 6.5). The strong diffuse scattering present in the
diffraction patterns is described in terms of proton orientational and
positional disorder. Phase stability and range of existence of Ca
hexaammines are discussed from these different exptl. approaches,
and it is found that the cell length is a good order parameter to describe
inelastic properties and structural disorder in these mol. complexes.

Keywords

neutron scattering calcium ammine structure
phase system calcium ammonia

Index Entries

Energy level excitation
rotational, in calcium hexaammine complex
12133-31-2
rotational excitation in
7440-70-2, properties
systems, ammonia-
7664-41-7, properties
systems, calcium-

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1997 American Chemical Society All Rights Reserved.

107:162153
Quantum rotation of ammonia molecules in disordered calcium
hexaammine.
Leclercq, F.; Damay, P.; Dianoux, A. J.; Press, W. (LESI, CNRS, Lille
F-59046, Fr.). Springer Proc. Phys., 17(Quantum Aspects Mol.
Motions Solids), 103-6 (English) 1987. CODEN: SPPPEL.
DOCUMENT TYPE: Journal CA Section: 65 (General Physical
Chemistry)
In an extension of previous work (L., et. a., 1984), rotational transitions
of the NH3 [ND3] groups in disordered solid Ca(NH3)5.9 [Ca(ND3)5.93] at
1.7-20 K were studied by neutron inelastic scattering [NIS]. In the NIS
spectrum at <10 K, a very asym. line shape with a max. near the energy
of uniaxial rotation of the NH3 [ND3] groups was obsd., which was
interpreted in terms of quantum rotational excitations in a random
distribution of localized rotational potentials.

Keywords

neutron scattering ammonia rotation hexaamminecalcium
potential rotational ammonia disordered hexaamminecalcium
quantum rotation ammonia disordered hexaamminecalcium
calcium hexaamine disordered rotation ammonia
amminecalcium disordered rotation ammonia

Index Entries

Order
disorder, rotational excitation of ammonia groups in solid
hexaaamminecalcium having, at low temp., neutron inelastic
scattering in study of
Energy level excitation
rotational, of ammonia groups in disordered solid
hexaamminecalcium at low temp., neutron inelastic scattering in
study of
Potential energy and function
rotational, quantum rotation of ammonia groups in radomly
distributed localized, in disordered solid hexaamminecalcium at
low temp.
12586-31-1, chemical and physical effects
rotational excitation of ammonia groups in disordered solid
hexaamminecalcium at low temp. studied by inelastic scattering of
12133-31-2
57450-08-5
rotational excitation of ammonia groups in disordered solid, at low
temp., neutron inelastic scattering in study of
7664-41-7, properties
rotational excitation of, in disordered solid hexaaminecalcium at
low temp., neutron inelastic scattering in study of

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12楼

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 1997 American Chemical Society All Rights Reserved.

117:196520
Sand molds and cores manufactured using phenolic binder hardened
with an ester.
Yoshida, Akira; Kyochika, Naoki; Tanaka, Tsutomu; Matsuyama,
Katsumi; Kiuchi, Kazuhiko (Kao Corp., Japan). Eur. Pat. Appl. EP
465919 A1 15 Jan 1992, 31 pp. DESIGNATED STATES: R: DE, FR,
GB. (European Patent Organization). CODEN: EPXXDW. CLASS:
ICM: B22C001-22. ICS: C04B026-12. APPLICATION: EP 91-110454
25 Jun 1991. PRIORITY: JP 90-178634 5 Jul 1990; JP 90-229718 31
Aug 1990; JP 90-408225 27 Dec 1990. DOCUMENT TYPE: Patent
CA Section: 56 (Nonferrous Metals and Alloys)
The self-hardening sand binders based on water-sol. phenolic resin
contain an org. ester hardener and Group IB-VIII metals and/or compds.
(esp., powd. Mg, Zn, salts, oxides, and/or chelate compds.), optionally
with organosilane coupling agent. The foundry molds and cores are
hardened without heating, show improved strength, and are optionally
manufd. from reclaimed foundry sand. Thus, the molded test
specimens were manufd. from the mixt. contg. reclaimed SiO2 sand
100, aq. 49% phenolic resin binder 1.5, and triacetin hardener and
additive 0.375 wt. parts each. Compressive strength in 24 h at 25?and
60% relative humidity was 21.2 kg/cm2 when the additive was CaCl2 or
15.5 kg/cm2 with Ca(OH)2, vs. only 4.5 kg/cm2 without the additive.

Keywords

foundry sand binder phenolic resin
ester hardener foundry sand binder
metal compd hardener foundry sand binder
salt hardener foundry sand binder
oxide hardener foundry sand binder
hydroxide hardener foundry sand binder
chloride hardener foundry sand binder
triacetin hardener phenolic binder sand

Index Entries

Esters, uses
hardeners, foundry sand binders contg., with metal compd. for
increased mold strength
Cement
Zeolites, uses
sand binders contg., from phenolic resins, increased mold strength
of self-hardening
Group IIIB element compounds
Group IVB element compounds
Group VB element compounds
Group VIB element compounds
Group VIII element compounds
sand binders with, from phenolic resins, increased mold strength by
Molds (forms)
sand cores and, phenolic resin binders for, with hardener as ester
and metal compd.
Molding sand
self-hardening, metal compd. addns. in, for increased strength
Phenolic resins, uses
water-soln., foundry sand binders from, with ester hardener and
metal compd.
Ashes (residues)
fly, sand binders contg., from phenolic resins, increased mold
strength of self-hardening
64-02-8
contg. calcium chloride, sand binders contg., from phenolic resins,
increased mold strength of self-hardening
64-02-8
contg. calcium diacetate, sand binders contg., from phenolic resins,
increased mold strength of self-hardening
14025-21-9
contg. magnesium chloride, sand binders contg., from phenolic
resins, increased mold strength of self-hardening
64-02-8
contg. zinc chloride, sand binders contg., from phenolic resins,
increased mold strength of self-hardening
7439-95-4, uses
7440-66-6, uses
sand binders contg., from phenolic resins, increased mold strength
by
62-33-9
75-20-7
102-54-5
299-28-5
471-34-1, uses
544-17-2
547-66-0
555-31-7
925-90-6
1115-97-5
1184-55-0
1271-54-1
1299-86-1
1304-28-5, uses
1304-29-6
1305-62-0, uses
1305-78-8, uses
1305-79-9
1309-48-4, uses
1313-49-1
1314-13-2, uses
1314-98-3, uses
1344-28-1, uses
3164-34-9
5793-84-0
7002-90-6
7429-90-5, polymers, hydrogenated
7439-89-6, uses
7439-96-5, uses
7440-50-8, uses
7447-39-4, uses
7646-85-7, uses
7693-13-2
7718-54-9, uses
7718-98-1
7757-87-1
7757-93-9
7758-94-3
7773-01-5
7778-18-9
7784-18-1
7786-30-3, uses
7789-41-5
7789-78-8
10034-77-2
10043-52-4, uses
10043-67-1
10170-69-1
10241-05-1
10361-37-2, uses
11075-17-5
11077-31-9
11082-38-5
12042-68-1
12129-72-5
12133-31-2
12539-74-1
12604-53-4
13463-39-3
13477-09-3
13933-16-9
13963-57-0
14025-15-1
14025-21-9
14402-88-1
14729-89-6
14881-45-9
15086-27-8
15137-09-4
15375-84-5
15708-41-5
15708-55-1
20427-58-1
20859-73-8
22432-88-8
23321-74-6
23944-18-5
24304-00-5
29507-62-8
32614-34-9
34204-90-5
36314-58-6
36747-44-1
51542-71-3
56802-58-5
59307-27-6
60034-45-9
60800-19-3
66642-67-9
89989-23-1
143412-36-6
143412-37-7
143478-31-3
sand binders contg., from phenolic resins, increased mold strength
of self-hardening
102-76-1
sand binders hardened with, from phenolic resins, metal compds.
for increased strength of
919-30-2
2530-83-8
sand binders with, from phenolic resins, metal compds. for
increased strength of

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 16:10:55 编辑

13楼

Search Strategy
(CAS RN)(12133-31-2)

Copyright (c) 2002 American Chemical Society All Rights Reserved.

137:33688
Method for preparing catalysts of ring-opening polymerization of
ethylene oxide.
Zhou, Weiping; Liu, Xichun; Jiang, Liansheng (Changchun Inst. of
Applied Chemistry, Chinese Academy of Sciences; Changchun Dadi
Fine Chemicals Industry Co., Ltd., Peop. Rep. China). Faming Zhuanli
Shenqing Gongkai Shuomingshu CN 1306023 A 1 Aug 2001, 7 pp.
(Chinese). (People's Republic of China). CODEN: CNXXEV. CLASS:
ICM: C08G065-10. APPLICATION: CN 2000-136538 29 Dec 2000.
DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic
High Polymers) Section cross-reference(s): 37, 67
The method comprises dissolving metal Ca (purity >99.9%) in
dehydrated ammonia in a ratio of ammonia to Ca 5:1-50:1, mixing the
soln. with a carrier contg. metal oxides, nanometer metal oxides and/or
superfine SiO2, a modifier contg. propylene oxide and acetonitrile at
-50?to -20?and ageing at 150-230?for 1-2 h to form a catalyst.

Keywords

catalyst ethylene oxide ring opening polymn
hexaamminecalcium metal oxide carrier catalyst
propylene oxide acetonitrile hexaamminecalcium catalyst

Index Entries

Catalyst supports
Polyoxyalkylenes, preparation
method for prepg. catalysts of ring-opening polymn. of ethylene
oxide
Polymerization catalysts
ring-opening; method for prepg. catalysts of ring-opening polymn.
of ethylene oxide
Oxides (inorganic), uses
support; method for prepg. catalysts of ring-opening polymn. of
ethylene oxide
1344-28-1, uses
active or nanometer, support; method for prepg. catalysts of
ring-opening polymn. of ethylene oxide
12133-31-2
25322-68-3
7440-70-2, reactions
method for prepg. catalysts of ring-opening polymn. of ethylene
oxide
75-05-8, uses
75-56-9, uses
modifier; method for prepg. catalysts of ring-opening polymn. of
ethylene oxide
7631-86-9, uses
superfine, support; method for prepg. catalysts of ring-opening
polymn. of ethylene oxide

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 16:11:10 编辑

14楼

Copyright (c) 2003 American Chemical Society All Rights Reserved. On CA on CD(R).

139:36913
Ring-opening polymerization of e-caprolactone and L-lactide using
organic amino calcium catalyst.
Piao, Longhai; Deng, Mingxiao; Chen, Xuesi; Jiang, Liansheng; Jing,
Xiabin (Changchun Institute of Applied Chemistry, State Key
Laboratory of Polymer Physics and Chemistry, Chinese Academy of
Sciences, Changchun 130022, Peop. Rep. China). Polymer, 44(8),
2331-2336 (English) 2003 Elsevier Science Ltd. CODEN: POLMAG.
ISSN: 0032-3861. DOCUMENT TYPE: Journal CA Section: 35
(Chemistry of Synthetic High Polymers)
Poly (e-caprolactone) (PCL) and poly (L-lactide) (PLA) were prepd. by
ring-opening polymn. catalyzed by org. amino calcium catalysts (Ca/PO
and Ca/EO) which were prepd. by reacting calcium ammoniate
Ca(NH3)6 with propylene oxide and ethylene oxide, resp. The catalysts
exhibited high activity and the ring-opening polymn. behaved a
quasi-living characteristic. Based on the FT-IR spectra and the calcium
contents of the catalysts, and based on the 1H NMR end-group anal. of
the low mol. wt. PCL prepd. using catalysts Ca/PO and Ca/EO, it was
proposed that the catalysts have the structure of NH2-Ca-O-CH(CH3)2
and NH2-Ca-O-CH2CH3 for Ca/PO and Ca/EO, resp. The ring-opening
polymn. of CL and LA follows a coordination-insertion mechanism and
the active site is the Ca-O bond.

Keywords

ring opening polymn caprolactone lactide org amno calcium catalyst

Index Entries

Polyesters, preparation
ring-opening polymn. of e-caprolactone and L-lactide using org.
amino calcium catalyst
Polymerization
Polymerization catalysts
ring-opening; ring-opening polymn. of e-caprolactone and L-lactide
using org. amino calcium catalyst
502-44-3
mechanism of ring-opening polymn. of e-caprolactone using org.
amino calcium catalyst
75-21-8, reactions
75-56-9, reactions
12133-31-2
reactant in catalyst prepn.; ring-opening polymn. of e-caprolactone
and L-lactide using org. amino calcium catalyst
3536-95-6
544429-71-2
24980-41-4
25248-42-4
26161-42-2
33135-50-1
ring-opening polymn. of e-caprolactone and L-lactide using org.
amino calcium catalyst

回复人：笨笨,▲ () 时间：2004-11-20 16:25:25 编辑	15楼
谢谢penance

回复人：penance,▲▲▲▲▲ (人生得意须尽欢) 时间：2004-11-20 16:35:21 编辑	16楼
看专利CN1306023 和专利GB1539650 有合成方法

回复人：笨笨,▲ () 时间：2004-11-21 22:20:28 编辑	17楼
加分给penance

回复人：admin,★ (论坛管理员-欢迎大家访问化学化工论坛) 时间：2004-11-22 21:36:49 编辑	18楼
接受答案了。

得分人：penance-5,

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