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Dynamics of a glycine molecule in a new ferroelectric glycine phosphite studied by proton NMR by J. Tritt-Goc; N. Piślewski; L. Szczepańska; R. Goc is a Physics and Astronomy article available to read on EtoBox.

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The second moments of the proton magnetic resonance lines and relaxation times in the laboratory frame T 1 , in polycrystalline glycinum phosphite 3 ) were measured. The proton spin-lattice relaxation measurements reveal one minimum due to the C 3 reorientations of the amino groups of glycinum cations. Analysis of the relaxation data yields the activation energy barrier of 28.7 kJ mol 11 . Second moment measurements confirm the phase transition at T c 1⁄4 224 K known from different studies. The molecular mechanism of the order-disorder phase transition is discussed.

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Author

J. Tritt-Goc; N. Piślewski; L. Szczepańska; R. Goc

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0038-1098)

Published

1998

Language

EN

Field

Physics and Astronomy (Physical Sciences)