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Quantum Treatment of Intermolecular Multiple-Quantum Coherences with Intramolecular J Coupling in Solution NMR

Title
Quantum Treatment of Intermolecular Multiple-Quantum Coherences with Intramolecular J Coupling in Solution NMR
Authors
Ahn S.Warren W.S.Lee S.
Ewha Authors
이상혁
SCOPUS Author ID
이상혁scopus
Issue Date
1997
Journal Title
Journal of Magnetic Resonance
ISSN
1090-7807JCR Link
Citation
Journal of Magnetic Resonance vol. 128, no. 2, pp. 114 - 129
Indexed
SCI; SCIE; SCOPUS scopus
Document Type
Article
Abstract
A recently introduced density matrix picture for dipolar effects in solution NMR (1996, J. Chem. Phys. 105, 874) gave complete solutions for intermolecular multiple-quantum coherences for single-component samples without scalar couplings. This paper, for the first time, shows that this quantum picture can lead to explicit signal expressions for multicomponent samples of molecules with internal scalar couplings (here assumed to generate a first-order spectrum) and long-range dipolar couplings. Experimental observation of a triplet in the indirectly detected dimension for a heteronuclear CRAZED sequence (13CHCl3 sample, ZQ or 2Q coherences) gives clear evidence that the coupling is due to the intermolecular dipolar coupling. We also make comparisons with classical pictures which introduce the dipolar demagnetization field in multicomponent spin systems. © 1997 Academic Press.
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자연과학대학 > 생명과학전공 > Journal papers
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