A PHASE-TRANSITION IN (CH3NH3)(2)SNCL6 INVESTIGATED BY RAMAN-SCATTERING

Authors
SHI JR KUME Y PELZL J XU YC WU X
Citation
Jr. Shi et al., A PHASE-TRANSITION IN (CH3NH3)(2)SNCL6 INVESTIGATED BY RAMAN-SCATTERING, Journal of Raman spectroscopy, 29(2), 1998, pp. 149-151
Citations number
13
Categorie Soggetti
Spectroscopy
Journal title
Journal of Raman spectroscopy → ACNP
ISSN journal
03770486
Volume
29
Issue
2
Year of publication
1998
Pages
149 - 151
Database
ISI
SICI code
0377-0486(1998)29:2<149:API(IB>2.0.ZU;2-2
Abstract
Raman spectra of (CH3NH3)(2)SnCl6 were recorded in the temperature ran ge 5-300 K. A continuous phase transition occurs at T-c=155 K, The fac t that all the E modes of the CH3NH3+ ion and the SnCl62- ion remain d egenerate in the low-temperature phase indicate that (CH3NH3)(2)SnCl6 still has a trigonal structure in the low-temperature phase, No soft m ode was observed in the low-temperature range. (C) 1998 John Wiley & S ons, Ltd.