A new phase transition and the isotopic effect in Cs5H3(S O-4)(4) center dot 0.5H(2)O crystals

Authors
Lushnikov, SG Shuvalov, LA
Citation
Sg. Lushnikov et La. Shuvalov, A new phase transition and the isotopic effect in Cs5H3(S O-4)(4) center dot 0.5H(2)O crystals, CRYSTALLO R, 44(4), 1999, pp. 615-619
Citations number
20
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
44
Issue
4
Year of publication
1999
Pages
615 - 619
Database
ISI
SICI code
1063-7745(199907/08)44:4<615:ANPTAT>2.0.ZU;2-3
Abstract
The lattice dynamics of Cs5H3(SO4)(4) . 0.5H(2)O (PCHS) crystals is conside red using the original data obtained by the authors and other published dat a. As a result, the occurrence of a phase transition in the vicinity of 360 K in a protonated PCHS crystal and the absence of such transition in a deu terated PCHS crystal are assumed. The latter can indicate a strong isotopic effect for hydrogen atoms.