Premium
The low‐temperature barium fluoridozirconate variety α‐BaZr 2 F 10
Author(s) -
Laval Jean-Paul
Publication year - 2019
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s205322961901297x
Subject(s) - polyhedron , barium , triclinic crystal system , stacking , crystallography , materials science , variety (cybernetics) , chemistry , crystal structure , physics , geometry , nuclear magnetic resonance , mathematics , metallurgy , statistics
The low‐temperature triclinic variety α‐BaZr 2 F 10 constitutes a new structure type, less symmetrical than the higher‐temperature β‐variety. It is based on the stacking of double sheets of Zr polyhedra, connecting three different kinds of ZrF 7 polyhedra and one ZrF 8 polyhedron via vertices and edges, separated by corrugated Ba 2+ layers. It is compared to the high‐temperature β‐variety, directly recrystallizing from barium fluoridozirconate glass, and also to BaTe 2 F 10 and KTe 2 F 9 .