Raman spectra and structures of the high‐ and low‐temperature phases in the two‐dimensional layer‐type compound (CH3CH2NH3)2SnCl6
- 1 August 1985
- journal article
- research article
- Published by Wiley in Journal of Raman Spectroscopy
- Vol. 16 (4) , 219-228
- https://doi.org/10.1002/jrs.1250160402
Abstract
Polarized Raman spectra of oriented single crystals of (CH3CH2NH3)2SnCl6 measured over the temperature range 15–300 K have been used to investigate the mechanism of the structural transition at 125 K. A detailed study of some of the external modes and of the internal modes of both the SnCl62− and CH3CH2NH3+ ions in the high‐ and low‐temperature phases has enabled the structure of the disordered high‐temperature phase to be confirmed and suggestions for the structure of the low‐temperature phase to be proposed.Keywords
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