| | 1 | Author
| Hiroyuki Ishida, Masakazu Kato, Hiroshi Ono, Ryuichi Ikeda | Requires cookie* | | | Title
| Cationic Self-diffusion in Solid Choline Perchlorate Studied by NMR  | | | | Abstract
| The 1 H spin-lattice and spin-spin relaxation times, and the second moment of the 1 H NMR linewidth of choline Perchlorate, [(Cff^NCfFCHiOHJClC^, were measured in its highest-temperature solid phase, i. e. above 275 K. X-ray powder patterns taken at ca. 380 K revealed that in this phase the crystal has a CsCl-type cubic structure (a = 6.326(4) A and Z = 1). From *H NMR experiments it was found that the cations in this phase undergo isotropic rotation and translational self-diffusion. From the 1 H T, measurements, the activation energies of the cationic rotation and self-diffusion were evaluated to be 21.4 ± 0.4 and 62 ± 3 kJ mol -1 , respectively. | | | |
Reference
| Z. Naturforsch. 52a, 637—639 (1997); received May 28 1997 | | | |
Published
| 1997 | | | |
Keywords
| Ionic plastic phase, Self-diffusion, Crystal structure, Nuclear magnetic resonance | | | |
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| default:Reihe_A/52/ZNA-1997-52a-0637.pdf | | | | Identifier
| ZNA-1997-52a-0637 | | | | Volume
| 52 | |
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