You are here: Home :: Area NEM :: Chemistry :: Inorganic chemistry

M.A. Zakharov, Sergey I. Troyanov, Erhard Kemnitz

Superprotonic high temperature phase and refinement of the low temperature structure of CsHSeO₄

The crystal structure of the high temperature superprotonic phase of CsHSeO₄-I (tI28) has been investigated by single crystal X-ray diffraction at 408 K. It crystallizes tetragonal, a = 5.880(1), c = 14.415(3) Å, V = 498.4(2) ų, Z = 4, space group I4₁/amd. In the SeO₄ tetrahedron, the Se-O distance is 1.66 Å after correction for libration. A layer-like hydrogen bonding system is suggested. The low temperature structure, CsHSeO₄-II (mP28), was refined from X-ray diffraction data with an accuracy which made it possible to localize the H atom. Crystallographic relations between the two phases during the phase transition are discussed.

Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0044-2968
Volume: 216, 03/2001
Pages: 172

Journal homepage (external site)

Show all available items of this journal

 

Area NEM