Publication
Reference
Anderson A., Walmsley S.~H. (1965). Far infra-red spectra of molecular crystals. Mol. Phys, 9, 1 - 8.
Names
  • A. Anderson
  • S.~H. Walmsley
Article and keywords
Title
Far infra-red spectra of molecular crystals
Abstract
Absorption spectra of crystalline films of ammonia, 3-deutero ammonia, hydrogen sulphide and 2-deuterium sulphide have been measured at liquid nitrogen temperature using a Michelson interferometer. Changes in frequency on deuteration enable the modes to be classified as either translational or librational. In the case of ammonia, the spectrum is consistent with the stable cubic crystal form belonging to space group T4 but the situation is complicated by the possible presence of metastable phases. The hydrogen sulphide spectrum indicates a site symmetry of Cs, and favours an orthorhombic over a tetragonal structure.
Keywords
spectroscopy, transmission, transmission spectra, band position, band vibration mode, far-IR, amorphous, low temperature, crystalline, molecular solid, ice, NH3, ND3, H2S, D2S
Content
spectral data, band list data, sample
Year
1965
Journal
Molecular Physics
Volume
9
Number
1
Pages
1 - 8
Document type
article
Publication state
published
Doi
10.1080/00268976500100011
Identifiers