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od 2020-09-20

Title: Dynamics of t-butyl groups in a series of related molecular solids

Source: Molecular Physics Reports

Year : 1996

Abstract:

The dynamics of the lowest temperature phase of a series of closely related t-butyl compounds (CH3)CXH, whre X=O, S, Se, has been studied using 1H NMR. The obtained data allowed the separation of the dynamics arising from methyl group and from t-butyl group. The activation parameters of the motions are given. It is shown that the t-butyl group is more mobile than constituent methyl groups and that coupling between these two motions is associated with the observed order-disorder phase transition.

   (Pobrane:  2021-01-07)