Add time:08/10/2019         Source:sciencedirect.com

Nuclear Magnetic Resonance studies of line narrowing (T2), spin-lattice relaxation (T1), and spectral changes with temperature have been carried out on single crystals of LiI·D2O and LiI·H2O, as well as upon pure and SiO2 doped LiH·H2O powder. Activation energies and correlation times for Li+ ion motion and water molecule reorientation are compared with results from conductivity and structural experiments. A significant difference is evident in the correlation functions, and apparent activation energies, between the diffusing Li ion and the reorienting water molecules. Nevertheless, the time scales for motion are in substantial agreement.

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