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Solid‐state 2 H NMR study of the dynamics of the methoxy groups in perdeuteriated bis(dimethoxythiophosphoryl) disulphide
Author(s) -
Potrzebowski Marek J.
Publication year - 1992
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260300108
Subject(s) - chemistry , activation energy , arrhenius equation , arrhenius plot , solid state , anisotropy , spectral line , nmr spectra database , solid state nuclear magnetic resonance , analytical chemistry (journal) , crystallography , computational chemistry , nuclear magnetic resonance , organic chemistry , physics , quantum mechanics , astronomy
2 H solid‐state NMR was employed to study the statio and dynamic properties of perdeuteriated bis(dimethoxythiophosphoryl) disulphide. It was found that sample preparation has a significant influence on the line shapes of the broad‐line solid‐state spectra. It was concluded from inversion–recovery experiments that the methyl groups are in the fast exchange regime, τ c < 10 −s s. The three‐site jump model, with reorientation of the methyl group about a C 3 symmetry, was assumed as the best explanation of the T 1 anisotropy. The apparent activation energy calculated from an Arrhenius plot was found to be 5.35 kJ mol −1 .