CRYSTAL-STRUCTURE OF LITHIUM AND YTTRIUM COMPLEX FLUORIDES

被引：49
|
作者：
GORYUNOV, AV [1 ]
POPOV, AI [1 ]
KHAJDUKOV, NM [1 ]
FEDOROV, PP [1 ]
机构：
[1] SCHUBNIKOV CRYSTALLOG INST,MOSCOW 117333,USSR
来源：
MATERIALS RESEARCH BULLETIN | 1992年 / 27卷 / 02期
关键词：
LITHIUM; FLUOROYTTRATES (III); CRYSTAL STRUCTURES;
D O I：
10.1016/0025-5408(92)90215-L
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Precision X-ray single crystal diffraction study of phases in LiF - KF - YF3 system has been carried out. LiKYF5 and K2Li1+3-delta-Y1-delta-F6 previously unknown phases form monoclinic crystals (a = 6.2925 (4), b = 11.747 (1). c = 6.4669 (5) angstrom. Beta = 113.715 (6)-degrees, z = 4, SSG P2(1)/c; a = 8.227 (3), b = 5.815 (2), c = 10.073 (3) angstrom, beta = 144.75 (2)-degrees, z = 2, SSG A2/m respectively). LiYF crystal structure was refined, too. LiYF and LiKYF5 lattices include three-dimensional frameworks constructed of (YF8) and (LiF4) polyhedra connecting with each other. K2Li1+3-delta-Y1-delta-F6 crystal structure is derived from elpasolite, perovskite or K2PtCl6.
引用
收藏
页码：213 / 220
页数：8
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