Materials Data on LiSm(SO4)2 by Materials Project

Abstract

LiSm(SO4)2 crystallizes in the tetragonal P-4n2 space group. The structure is three-dimensional. Li1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Li–O bond lengths are 1.89 Å. Sm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are four shorter (2.44 Å) and four longer (2.50 Å) Sm–O bond lengths. S6+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.48 Å) and two longer (1.51 Å) S–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one Sm3+, and one S6+ atom. In the second O2- site, O2- is bonded in a distorted water-like geometry to one Sm3+ and one S6+ atom.