The crystal structure of lithium fluoroantimonate(V)
Abstract
<h2>Acta Crystallographica</h2><h3></h3><h3>0365-110X</h3> <h2>research papers</h2> Volume 15 Part 11 Pages 1098-1101 November 1962 <h2>The crystal structure of lithium fluoroantimonate(V)</h2> J. H. Burns 1098 Acta Cryst. (1962). 15, 1098 The Crystal Structure of Lithium Fluoroantimonate(V) BY JOH~ H. BUR~S Reactor Chemistry Division, Oak Ridge National Laboratory,* Oak Ridge, Tennessee, U.S.A. (Received 18 December 1961 arut in revised form 13 February 1962) The crystal structure of LiSbF6 has been determine(t by single-crystal counting techniques and least-squares refinement. The unit cell is rhombohedral, R3, with a = 5.43 A, ~ = 56° 58' and c<)ntains one formula weight. The fluorine atoms form regular octahedra about the antimony and about the lithium atoms at distances of 1.88_+0.02 and 2.03_+0.02 z~, respectively. The structure may be described as a rhombohedral distortion of the cubic NaSbF6 arrangement. Introduction The structures of compounds with the formula RSbF6 have been reported for R+ equal to Na+ (Schrewelius, 1938); Ag+ (Bode, 1951); K+ (Bode & Voss, 1951); and Tl+, Rb+, NH~~ and Cs+ (Schrewelius, 1942). The arrangement of R+ and SbF;- ions in these crystals is of two types: NaC1 and CsC1 (distorted). Cox (1956) has pointed out that those fluoroantimonatcs(V) having R+ within a certain size range