Far infra-red spectra of molecular crystals
- 1 January 1964
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 7 (5) , 411-416
- https://doi.org/10.1080/00268976300101181
Abstract
Absorption spectra of crystalline films of chlorine, bromine and iodine at 77°k have been measured in the region 20–400 cm-1 using a Michelson interferometer. The two low-frequency bands observed for each sample are assigned as translational lattice modes, in agreement with theoretical predictions from the known crystallographic structure, and the relevant intermolecular force constants are derived. In addition, a weak absorption is observed in the region of the stretching frequency of both bromine and iodine and possible reasons for the appearance of this theoretically infra-red inactive mode are discussed.Keywords
This publication has 4 references indexed in Scilit:
- Far infra-red spectra of molecular crystalsMolecular Physics, 1964
- The crystal structure of solid chlorineActa Crystallographica, 1952
- The Vibrational Spectra of Molecules and Complex Ions in Crystals. I. General TheoryThe Journal of Chemical Physics, 1948
- The Structure of Crystalline BromineJournal of the American Chemical Society, 1936