Imperial College London

PROFESSOR CHARLOTTE K. WILLIAMS

Faculty of Natural SciencesDepartment of Chemistry

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 5790c.k.williams Website

 
 
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Location

 

317 RCS1ChemistrySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Thevenon:2016:10.1002/anie.201602930,
author = {Thevenon, A and Romain, C and Bennington, M and White, A and Davidson, H and Brooker, S and Williams, CK},
doi = {10.1002/anie.201602930},
journal = {Angewandte Chemie - International Edition},
pages = {8680--8685},
title = {Di-zinc Lactide Polymerization Catalysts: Hyper-Activity by Control of Ligand Conformation and Metallic Cooperativity},
url = {http://dx.doi.org/10.1002/anie.201602930},
volume = {55},
year = {2016}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Understanding how to moderate and improve catalytic activity is critical to improving degradable polymer production. Here, di- and mono-zinc catalysts, coordinated by bis(imino)diphenylamido ligands, show remarkable activities and allow determination of the factors controlling performance. In most cases, the di-zinc catalysts significantly out-perform the mono-zinc analogues. Further, for the best di-zinc catalyst, the ligand conformation controls activity: the catalyst with ‘folded’ ligand conformations show TOF values up to 60,000 h-1 (0.1 mol% loading, 298 K, [LA] = 1 M), whilst that with a ‘planar’ conformation is much slower, under similar conditions (TOF = 30 h-1). Di-zinc catalysts also perform very well under immortal conditions, showing improved control, and are able to tolerate loadings as low as 0.002 mol% whilst conserving high activity (TOF = 12,500 h-1).
AU - Thevenon,A
AU - Romain,C
AU - Bennington,M
AU - White,A
AU - Davidson,H
AU - Brooker,S
AU - Williams,CK
DO - 10.1002/anie.201602930
EP - 8685
PY - 2016///
SN - 1433-7851
SP - 8680
TI - Di-zinc Lactide Polymerization Catalysts: Hyper-Activity by Control of Ligand Conformation and Metallic Cooperativity
T2 - Angewandte Chemie - International Edition
UR - http://dx.doi.org/10.1002/anie.201602930
UR - http://hdl.handle.net/10044/1/32156
VL - 55
ER -