Detection of intermolecular chemical exchange through decorrelation of two-spin order

Authors
Skrynnikov, NR Ernst, RR
Citation
Nr. Skrynnikov et Rr. Ernst, Detection of intermolecular chemical exchange through decorrelation of two-spin order, J MAGN RES, 137(1), 1999, pp. 276-280
Citations number
46
Categorie Soggetti
Chemistry & Analysis","Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MAGNETIC RESONANCE
ISSN journal
10907807 → ACNP
Volume
137
Issue
1
Year of publication
1999
Pages
276 - 280
Database
ISI
SICI code
1090-7807(199903)137:1<276:DOICET>2.0.ZU;2-H
Abstract
An initial correlation between two spins is lost when they are separated by intermolecular chemical exchange. This effect, termed "decorrelation by ch emical exchange," manifests itself in a decay of the corresponding two-spin modes, It can be used for monitoring intermolecular chemical exchange, as is demonstrated for L-tryptophan where the decay of (HN)-H-1-N-15 two-spin order provides information on the exchange of indole protons with solvent w ater. (C) 1999 Academic Press.