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
AbstractCarbon-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.
|Journal series||Magnetic Resonance in Chemistry, ISSN 1097-458X|
|Keywords in English||13C NMR, 199Hg NMR, molecular reorientation, NMR, nuclear spin relaxation, shielding anisotropy|
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