Two-dimensional NMR spectroscopy of connected transitions by linear combination of flip angle dependent cosy: An alternative scheme for E.COSY

Chandrasekhar, K and Kumar, Anil (1988) Two-dimensional NMR spectroscopy of connected transitions by linear combination of flip angle dependent cosy: An alternative scheme for E.COSY. In: Magnetic Resonance in Chemistry, 26 (10). 821-826 .

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Abstract

An alternative pulse scheme which simplifies and improves the recently proposed P.E.COSY experiment is suggested for the retention of connected or unconnected transitions in a coupled spin system. An important feature of the proposed pulse scheme is the improved phase characteristics of the diagonal peaks. A comparison of various experiments designed for this purpose, namely COSY-45, E.COSY, P.E.COSY and the present scheme (A.E.COSY), is also presented. The suppression of unconnected transitions and the measurement of scalar coupling constants and their relative signs are illustrated from A.E.COSY spectra of 2,3-dibromopropionic acid and 2-(2-thienyl)pyridine.

Item Type:	Journal Article
Publication:	Magnetic Resonance in Chemistry
Publisher:	John Wiley and Sons
Additional Information:	Copyright of this article belongs to John Wiley and Sons.
Keywords:	Two-dimensional NM;COSY;E.COSY.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	13 Oct 2010 09:12
Last Modified:	13 Oct 2010 09:12
URI:	http://eprints.iisc.ac.in/id/eprint/33061

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