Structure of the laser host material LiYF4
作者： E. Garcia , R. R. Ryan
DOI: 10.1107/S0108270193005876
关键词: Yttrium 、 Crystal structure 、 Chemistry 、 Fluoride 、 Tetragonal crystal system 、 Crystallography 、 Scheelite 、 Inorganic chemistry 、 Tetrafluoride 、 Ion 、 Lithium
摘要: Lithium yttrium tetrafluoride, LiYF 4 , M r =171.8, tetragonal, I4 /a, a=5.164 (1), c=10.741 (2) A, V=286.5 (1) A 3 Z=4, D x = 3.99 g cm -3 λ(Mo Kα)=0.7107 μ=204 -1 F(000)=312, T=295 K, R=0.015 for 156 unique observed [F>4σ(F)] reflections. The scheelite (CaWO ) structure is confirmed. located at a site with four equidistant fluoride ions. Yttrium in an eightfold coordination typical rare-earth ions
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