| 1 | Author
| Masahiko Suhara, Koichi Mano | Requires cookie* | | Title
| NQR and Phase Transitions in Hexachlorocyclopropane Crystal  | | | Abstract
| 35 C1 NQR and DSC studies on phase transitions in hexachlorocyclopropane (HCCP), C 3 C1 6 , are reported. It is found that HCCP has three solid phases: A high temperature disordered phase (Phase I) above 301 K (no NQR spectrum was observed); a metastable phase (Phase II), which exhibited 6 NQR lines from 77 to 270 K; a low temperature phase (Phase III) in which a 24-multiplet of 35 C1 NQR lines at 77 K, the most complex multiplet spectrum ever reported was observed. DSC measurement shows a A-type transition at 301 K and a broad transition of very slow rate at 285 K. The structure and mechanism of phase transitions in HCCP crystal are discussed. | | |
Reference
| Z. Naturforsch. 45a, 339—342 (1990); received August 23 1989 | | |
Published
| 1990 | | |
Keywords
| Nuclear quadrupole resonance, Phase transition, Crystal structure, Differential scan-ning calonmetry, Order-disorder transition | | |
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| default:Reihe_A/45/ZNA-1990-45a-0339.pdf | | | Identifier
| ZNA-1990-45a-0339 | | | Volume
| 45 | |
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