CRYSTAL-STRUCTURE OF LATH4F19.H2O

Authors
GUERY J GAO Y GUERY C JACOBONI C
Citation
J. Guery et al., CRYSTAL-STRUCTURE OF LATH4F19.H2O, European journal of solid state and inorganic chemistry, 31(2), 1994, pp. 187-196
Citations number
11
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
European journal of solid state and inorganic chemistry → ACNP
ISSN journal
09924361
Volume
31
Issue
2
Year of publication
1994
Pages
187 - 196
Database
ISI
SICI code
0992-4361(1994)31:2<187:COL>2.0.ZU;2-D
Abstract
Single crystals of LaTh4F19.H2O were prepared by reaction of LaF3 and ThF4 in HCl or HNO3 Solutions under hydrothermal conditions. The cryst al structure was solved from single crystal X-Ray diffraction data (R= 0.04) in the Cmcm space group: a=23.362(1)angstrom, b=7.3127(6)angstro m, c=8.236(1)angstrom, Z=4. The structure is built up with [ThF9]5- an d average [Th0.5La0.5F10]6.5- polyhedra associated in biplanes linked by [ThF7(OH2)]n3n- chains. H2O molecules and La atoms were located aft er the examination of the results of valence bond calculations.