VO2- IONS AND H2O MOLECULES MOTIONS IN CS5H3(SO4)(4).H2O( EPR STUDIESOF SO42)

Authors
BEDNARSKI W WAPLAK S BARANOV AI SHUVALOV LA
Citation
W. Bednarski et al., VO2- IONS AND H2O MOLECULES MOTIONS IN CS5H3(SO4)(4).H2O( EPR STUDIESOF SO42), Ferroelectrics, 210(1-4), 1998, pp. 1-12
Citations number
16
Categorie Soggetti
Physics, Condensed Matter","Material Science
Journal title
Ferroelectrics → ACNP
ISSN journal
00150193
Volume
210
Issue
1-4
Year of publication
1998
Pages
1 - 12
Database
ISI
SICI code
0015-0193(1998)210:1-4<1:VIAHMM>2.0.ZU;2-8
Abstract
The EPR spectra of VO2+ complexes in Cs5H3(SO4)(4) . H2O have been inv estigated with the aim to study of SO42- ions and H2O molecules motion s in the range (80-420) K. Results of EPR analyses presented, reveal g radual water molecules ''freezing'' down to T-g = 260 K and an additio nal SO42- unit freezing correlated to H2O. It is shown that correlated interaction between SO42- ions and water molecules leads to glassy-li ke freezing below T-g.