Title
The power of electron paramagnetic resonance to study asymmetric homogeneous catalysts based on transition-metal complexes The power of electron paramagnetic resonance to study asymmetric homogeneous catalysts based on transition-metal complexes
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam ,
Subject
Chemistry
Source (journal)
Coordination chemistry reviews. - Amsterdam
Volume/pages
253(2009) :15/16 , p. 2116-2130
ISSN
0010-8545
ISI
000268067200014
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Asymmetric synthesis involves the preparation of chiral compounds with well-defined three-dimensional molecular structure or stereochemistry. Many of these enantioselective transformations involve chiral ligands incorporating transition-metal ions. Over the years numerous synthetic, spectroscopic and theoretical approaches have been applied to understand and probe the inner workings and mode of chiral transfer in these homogeneous based catalysts. For the paramagnetic based asymmetric complexes, electron paramagnetic resonance (EPR) can provide a wealth of detail and information on the structure and mechanism of the catalysts. Despite this potential, the application and uptake of advanced EPR methodologies to this field of endeavor has been limited. The purpose of this review is to explain and illustrate, through representative examples, the enormous amount of information that can be obtained from an EPR study of the chiral metal-based complexes, ranging from electronic structure and symmetry to spatial arrangement of interacting ligands and substrates.
E-info
https://repository.uantwerpen.be/docman/iruaauth/91fe9b/14117dad707.pdf
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