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

页码：213 / 220

页数：8

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