Materials Data on Ce(SO4)2 by Materials Project

Abstract

Ce(SO4)2 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Ce4+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ce–O bond distances ranging from 2.30–2.47 Å. There are two inequivalent S6+ sites. In the first S6+ site, S6+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.48 Å) and one longer (1.49 Å) S–O bond length. In the second S6+ site, S6+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.48 Å) and two longer (1.49 Å) S–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to one Ce4+ and one S6+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ce4+ and one S6+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ce4+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ce4+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to one Ce4+ and one S6+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Ce4+ and one S6+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Ce4+ and one S6+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ce4+ and one S6+ atom.