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A phase transition in (CH3NH3)2S nCl6 investigated by raman scattering

✍ Scribed by J. R. Shi; Y. Kume; J. Pelzl; Y. C. Xu; X. Wu

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 283 KB
Volume: 29
Category: Article
ISSN: 0377-0486
DOI: 10.1002/(sici)1097-4555(199802)29:2<149::aid-jrs205>3.0.co;2-f

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✦ Synopsis

Raman spectra of were recorded in the temperature range 5-300 K. A continuous phase tran-(CH 3 NH 3 ) 2 SnCl 6 sition occurs at K. The fact that all the E modes of the ion and the ion remain T c = 155 CH 3 NH 3 ' SnCl 6 2degenerate in the low-temperature phase indicate that still has a trigonal structure in the low-(CH 3 NH 3 ) 2 SnCl 6 temperature phase. No soft mode was observed in the low-temperature range. 1998

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