Dynamic disorder in stable and metastable thiophene. - II. Non Lorentzian nuclear relaxation and glass transition
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چکیده
2014 A study of the proton nuclear relaxation of crystalline thiophene has been undertaken. Our results demonstrate that, in both the stable and the metastable phase sequences, the in-plane molecular reorientation does not have a single correlation time. This non Lorentzian nuclear relaxation is discussed in terms of a distribution of correlation times and in terms of the mathematically equivalent model of unequal potential wells. We conclude that the observed relaxation feature is the dynamical fingerprint for glass-forming materials. J. Phys. France 50 (1989) 855-859 15 AVRIL 1989,
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تاریخ انتشار 2017