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HR-DOSY as a new tool for the study of chemical exchange phenomena

✍ Scribed by Eurico J. Cabrita; Stefan Berger

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
214 KB
Volume
40
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

DOSY NMR spectroscopy can be a fast and easy method to establish qualitatively the relative order of magnitude of the exchange rates of systems in slow exchange in chemical shift. By measuring a series of DOSY spectra of a two‐site exchange system, where exchange occurs between sites with different diffusion coefficients, we show that by increasing the diffusion time among experiments it is possible to extract information about the relative exchange rates of protons with the bulk solvent and therefore infer their solvent accessibility. Copyright Β© 2002 John Wiley & Sons, Ltd.

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