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Flexibly Tethered Dinuclear Zinc Complexes: A Solution to the Entropy Problem in CO 2 /Epoxide Copolymerization Catalysis?
Author(s) -
Lehenmeier Maximilian W.,
Kissling Stefan,
Altenbuchner Peter T.,
Bruckmeier Christian,
Deglmann Peter,
Brym AnnaKatharina,
Rieger Bernhard
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201302157
Subject(s) - epoxide , copolymer , zinc , catalysis , chemistry , polymer chemistry , ring (chemistry) , kinetic energy , materials science , organic chemistry , polymer , physics , quantum mechanics
Working in zinc : Kinetic investigations of a new zinc catalyst (see scheme) for the copolymerization of CO 2 and epoxides show a reversible shift in the rate‐determining step from epoxide ring opening to CO 2 insertion, depending on the applied pressure. This shift is attributed to the similarity of the activation barriers and explains the exceptionally high activities for the copolymerization.