INFRARED-SPECTRA OF SOLID TRIFLUOROIODOMETHANE

Authors
ANDERSON A KO YM SMITH W
Citation
A. Anderson et al., INFRARED-SPECTRA OF SOLID TRIFLUOROIODOMETHANE, Physica status solidi. b, Basic research, 194(2), 1996, pp. 775-782
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
194
Issue
2
Year of publication
1996
Pages
775 - 782
Database
ISI
SICI code
0370-1972(1996)194:2<775:IOST>2.0.ZU;2-I
Abstract
Infrared spectra of solid trifluoroiodomethane, CF3I, at temperatures between 12 and 125 K in both the lattice and internal mode regions are presented and discussed. A reversible phase transition at (115+/-3) K is confirmed. The upper phase exhibits broad spectral features, chara cteristic of a disordered or highly anharmonic crystal. At 12 K, the s pectra are typical of an ordered harmonic molecular crystal, and are c ompatible with a centrosymmetric unit cell containing at least four mo lecules.