SYNTHESIS AND CHARACTERIZATION OF VANADIUM DIFFLUORIDE, NAVF3, KVF3, AND RBVF3

被引:28
作者
SHAFER, MW
机构
[1] IBM Thomas J. Watson Research Center Yorktown Heights
关键词
D O I
10.1016/0025-5408(69)90047-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The divalent vanadium compounds, NaVF3, KVF3, and RbVF3, have been prepared. They have the cubic perovskite structure with lattice constants of 3.94, 4.10, and 4.17 Å respectively. Magnetic susceptibility measurements showed large negative paramagnetic Curie temperatures, but no evidence of long-range antiferromagnetic order. The conditions under which pure VF2 can be prepared have also been studied and a diagram showing the relationship between temperature, hydrogen-hydrogen fluoride ratio, and the phases formed in the V-F system has been constructed. Single crystals of VF2 have been grown and characterized magnetically and optically. © 1969.
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页码:905 / &
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