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Raman study of a phase transition in solid trifluoroiodomethane

✍ Scribed by A. J. Beardsall; S. A. Schlueter; A. Anderson

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
381 KB
Volume
25
Category
Article
ISSN
0377-0486

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✦ Synopsis

Abstract

Raman spectra of solid trifluoroiodomethane are reported for both the lattice and internal mode regions for samples at temperatures between 12 and 130 K. A solid‐state phase transition at about 115 K is confirmed. Above this temperature, the spectra are characteristic of a disordered or highly anharmonic solid. At low temperatures, the spectra are compatible with an ordered, harmonic molecular crystal with a unit cell containing at least four molecules. Plausible assignments of all observed spectroscopic features are proposed.

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