NMR-STUDY OF THE FAST PROTONIC CONDUCTOR CS5H3(SO4)(4)CENTER-DOT-H2O

Authors
FAJDIGABULAT AM LAHAJNAR G DOLINSEK J SLAK J LOZAR B ZALAR B SHUVALOV LA BLINC R
Citation
Am. Fajdigabulat et al., NMR-STUDY OF THE FAST PROTONIC CONDUCTOR CS5H3(SO4)(4)CENTER-DOT-H2O, Solid state ionics, 77, 1995, pp. 101-104
Citations number
8
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
77
Year of publication
1995
Pages
101 - 104
Database
ISI
SICI code
0167-2738(1995)77:<101:NOTFPC>2.0.ZU;2-I
Abstract
The appearance of a ''liquid-like'' proton T-2 and the large value of the proton self-diffusion coefficient D = (2.8 - 4.4) X 10(-8) cm(2)/s above T-c=414 K demonstrate the existence of fast protonic conductivi ty in Cs5H3(SO4)(4) . H2O in this phase. Proton NMR linewidth transiti ons occur around 300 and 240 K demonstrating the slowing down of the m otion of acid protons and the freeze-out of crystal water reorientatio ns.