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Selective double quantum resolved correlation experiment for the complete separation of entire proton NMR spectra of enantiomers

Hebbar, Sankeerth and Prabhu, Uday Ramesh and Suryaprakash, N. (2012) Selective double quantum resolved correlation experiment for the complete separation of entire proton NMR spectra of enantiomers. In: Journal of Magnetic Resonance, 215 . pp. 23-26.

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Official URL: http://dx.doi.org/10.1016/j.jmr.2011.12.008

Abstract

The present study reports a two dimensional NMR experiment which separates single quantum spectra of enantiomers from that of a racemic mixture. This is a blend of selective double quantum refocusing, for resolving couplings and chemical shift interactions along two dimensions followed by correlation of the selectively excited protons to the entire coupled spin network. The concept is solely based on the presence of distinct intra methyl dipolar couplings of different enantiomers when dissolved in chiral orienting media. The analysis of single enantiomer spectrum obtained from respective F-2 cross sections yield all the spectral information. (C) 2011 Elsevier Inc. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Selective excitation;Multiple quantum coherences;COSY;Chiral discrimination
Department/Centre: Division of Chemical Sciences > NMR Research Centre (Formerly SIF)
Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 10 Apr 2012 07:39
Last Modified: 10 Apr 2012 07:39
URI: http://eprints.iisc.ernet.in/id/eprint/44172

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