Diffusion ordered spectroscopy for resolution of double bonded cis, trans-isomers

Chaudhari, Sachin Rama and Suryaprakash, N (2012) Diffusion ordered spectroscopy for resolution of double bonded cis, trans-isomers. In: JOURNAL OF MOLECULAR STRUCTURE, 1017 . pp. 106-108.

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Abstract

NMR spectroscopic separation of double bonded cis- and trans-isomers, that have different molecular shapes but identical mass have been carried out using Diffusion Ordered Spectroscopy (DOSY). The mixtures of fumaric acid and maleic acid, that have similar hydrodynamic radii, have resolved been on the basis of their diffusion coefficients arising due to their different tendencies to associate with micelles or reverse micelles. Sodium dodecyl sulfate (SDS) and Dioctyl sulfosuccinate sodium salt (AOT) have been used as the media to mimic the chromatographic conditions, modify the average mobility and to achieve differential diffusion rates. The best separation of the components has been achieved by Dioctyl sulfosuccinate sodium salt (AOT) in D2O solution. (C) 2012 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	JOURNAL OF MOLECULAR STRUCTURE
Publisher:	ELSEVIER SCIENCE BV
Additional Information:	Copyright for this article belongs to Elsevier B.V.
Keywords:	DOSY;Cis,trans-isomers;Micelles;SDS;AOT;NMR spectroscopy
Department/Centre:	Division of Chemical Sciences > NMR Research Centre (Formerly Sophisticated Instruments Facility) Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	16 Jul 2012 10:23
Last Modified:	16 Jul 2012 10:23
URI:	http://eprints.iisc.ac.in/id/eprint/44832

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