Materials Data on Ce4ThO10 by Materials Project

Abstract

ThCe4O10 is Fluorite-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Th4+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Th–O bond lengths are 2.40 Å. There are two inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.37 Å) and four longer (2.38 Å) Ce–O bond lengths. In the second Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Ce–O bond lengths are 2.37 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Ce4+ atoms to form a mixture of corner and edge-sharing OCe4 tetrahedra. In the second O2- site, O2- is bonded to two equivalent Th4+ and two equivalent Ce4+ atoms to form a mixture of corner and edge-sharing OCe2Th2 tetrahedra. In the third O2- site, O2- is bonded to four equivalent Ce4+ atoms to form a mixture of corner and edge-sharing OCe4 tetrahedra.