Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
THE DYNAMICS OF THE PLASTICALLY CRYSTALLINE PHASE OF CYANOADAMANTANE REVISITED BY NMR LINE SHAPE ANALYSIS AND FIELD-CYCLING RELAXOMETRY
Form of presentationArticles in international journals and collections
Year of publication2019
Языканглийский
  • Fatkullin Nail Fidaievich, author
  • Bibliographic description in the original language Flämig M, Fatkullin N, Rössler E.A., The dynamics of the plastically crystalline phase of cyanoadamantane revisited by NMR line shape analysis and field-cycling relaxometry//Journal of Chemical Physics. - 2019. - Vol.151, Is.22. - Art. № 224507.
    Annotation The dynamics of cyanoadamantane (CN-ADA) in its plastically crystalline phase encompasses three processes: overall tumbling of the rigidmolecule, rotation around the molecular symmetry axis, and vacancy diffusion. This makes CN-ADA a prototypical case to be studied byfield-cycling as well as by conventional NMR relaxometry. Data are collected from 430 K down to about 4 K and frequencies in the range of10 kHz–56 MHz are covered. The overall tumbling is interpreted as a cooperative jump process preceding along the orthogonal axis of thecubic lattice and exhibiting a temperature independent non-Lorentzian spectral density. Consequently, a master curve is constructed, whichyields model-independent correlation times, which agree well with those reported in the literature. It can be interpolated by a Cole-Davidsonfunction with a width parameterβCD= 0.83. The uniaxial rotation persisting in the glassy crystal (T
    Keywords dynamics of the plastically crystalline phase of cyanoadamantane revisited by NMR line shape analysis and field-cycling relaxometry
    The name of the journal Journal of Chemical Physics
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076571465&doi=10.1063%2f1.5126953&partnerID=40&md5=e2f5c5a26dc3d7deb5e8f69ab7029f08
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=220166&p_lang=2

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