Carbon-13 and mercury-199 nuclear spin relaxation study on solution dynamics of the bis(phenylethynyl)mercury molecule and shielding anisotropy of its acetyleniccarbon and mercury nuclei

Adam Gryff-Keller , Sergey Molchanov

Abstract

Carbon-13 longitudinal relaxation times and nuclear Overhauser effect enhancement factors at two magnetic fields and three temperatures were measured for a DMSO solution of bis(phenylethynyl)mercury and interpreted in terms of molecular mobility of the solute molecule. The problem of the effective C— H bond length, crucial for the quantitative treatment of the relaxation data, was especially addressed. Then, using relaxation data for acetylenic carbons and additionally measured longitudinal relaxation times of mercury-199, the shielding anisotropy parameters for these nuclei were calculated. Copyright © 2000 John Wiley \& Sons, Ltd.
Author Adam Gryff-Keller (FC / DOC)
Adam Gryff-Keller,,
- Department Of Organic Chemistry
, Sergey Molchanov
Sergey Molchanov,,
-
Journal seriesMagnetic Resonance in Chemistry, ISSN 1097-458X
Issue year2000
Vol38
No1
Pages17–22
Keywords in English13C NMR, 199Hg NMR, molecular reorientation, NMR, nuclear spin relaxation, shielding anisotropy
DOIDOI:10.1002/(SICI)1097-458X(200001)38:1<17::AID-MRC603>3.0.CO;2-V
URL http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1097-458X(200001)38:1<17::AID-MRC603>3.0.CO;2-V/abstract
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