Inorganic Chemistry, volume 57, issue 6, pages 3097-3106
Kinetic Studies of Copolymerization of Cyclohexene Oxide with CO2 by a Diamino-bis(phenolate) Chromium(III) Complex
1
Department of Chemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1B 3X7, Canada
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Publication type: Journal Article
Publication date: 2018-03-02
Journal:
Inorganic Chemistry
Q1
Q1
SJR: 0.928
CiteScore: 7.6
Impact factor: 4.3
ISSN: 00201669, 1520510X
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
A diamino-bis(phenolate) chromium(III) complex, CrCl(THF)[L], 1, where [L] = dimethylaminoethylamino- N, N-bis(2-methylene-4,6- tert-butylphenolate), has been synthesized in high yield and characterized by MALDI-TOF mass spectrometry, elemental analysis, UV-vis spectroscopy and single crystal X-ray diffraction. This complex combined with 4-dimethylaminopyridine (DMAP) or bis(triphenylphosphoranylidene)ammonium chloride or azide salts (PPNCl or PPNN3) shows improved activity over previously reported amine-bis(phenolate) chromium(III) complexes for copolymerization of cyclohexene oxide (CHO) and CO2 to yield poly(cyclohexene) carbonate (PCHC). Kinetic studies of the complex/DMAP system showed the activation energy for polycarbonate formation to be 62 kJ/mol. End group analysis of resulting polycarbonates by MALDI-TOF MS reveals either the chloride of the Cr(III) complex or the external nucleophile initiates the copolymerization reaction.
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Ni K., Kozak C. M. Kinetic Studies of Copolymerization of Cyclohexene Oxide with CO2 by a Diamino-bis(phenolate) Chromium(III) Complex // Inorganic Chemistry. 2018. Vol. 57. No. 6. pp. 3097-3106.
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Ni K., Kozak C. M. Kinetic Studies of Copolymerization of Cyclohexene Oxide with CO2 by a Diamino-bis(phenolate) Chromium(III) Complex // Inorganic Chemistry. 2018. Vol. 57. No. 6. pp. 3097-3106.
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TY - JOUR
DO - 10.1021/acs.inorgchem.7b02952
UR - https://doi.org/10.1021/acs.inorgchem.7b02952
TI - Kinetic Studies of Copolymerization of Cyclohexene Oxide with CO2 by a Diamino-bis(phenolate) Chromium(III) Complex
T2 - Inorganic Chemistry
AU - Ni, Kaijie
AU - Kozak, Christopher M.
PY - 2018
DA - 2018/03/02
PB - American Chemical Society (ACS)
SP - 3097-3106
IS - 6
VL - 57
SN - 0020-1669
SN - 1520-510X
ER -
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@article{2018_Ni,
author = {Kaijie Ni and Christopher M. Kozak},
title = {Kinetic Studies of Copolymerization of Cyclohexene Oxide with CO2 by a Diamino-bis(phenolate) Chromium(III) Complex},
journal = {Inorganic Chemistry},
year = {2018},
volume = {57},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/acs.inorgchem.7b02952},
number = {6},
pages = {3097--3106},
doi = {10.1021/acs.inorgchem.7b02952}
}
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Ni, Kaijie, and Christopher M. Kozak. “Kinetic Studies of Copolymerization of Cyclohexene Oxide with CO2 by a Diamino-bis(phenolate) Chromium(III) Complex.” Inorganic Chemistry, vol. 57, no. 6, Mar. 2018, pp. 3097-3106. https://doi.org/10.1021/acs.inorgchem.7b02952.