Premium
The impact of ion pair association upon the 1 H NMR spectra of cationic complexes akin to Grubbs catalysts
Author(s) -
Schiemenz Günter Paulus
Publication year - 2010
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.2570
Subject(s) - chemistry , cationic polymerization , diastereomer , counterion , nmr spectra database , spectral line , ion , catalysis , crystallography , carbon 13 nmr , nuclear magnetic resonance spectroscopy , stereochemistry , polymer chemistry , organic chemistry , physics , astronomy
A reconsideration of the 1 H NMR spectra of cationic transition metal complexes exhibiting the features of cyclophanes on the basis of Mislow's classification of topic groups arrives at the conclusion that the spectral changes triggered by chiral counterions reflect an intracationic diastereotopication of enantiotopic protons rather than the existence of pairs of long‐lived diastereomeric ion pairs. Copyright © 2010 John Wiley & Sons, Ltd.