Materials Data on Ce3ZrO8 by Materials Project

Abstract

Ce3ZrO8 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. 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 a spread of Ce–O bond distances ranging from 2.29–2.43 Å. In the second Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.30 Å) and four longer (2.40 Å) Ce–O bond lengths. Zr4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.22 Å) and four longer (2.36 Å) Zr–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ce4+ and two equivalent Zr4+ atoms to form a mixture of edge and corner-sharing OCe2Zr2 tetrahedra. In the second O2- site, O2- is bonded to four Ce4+ atoms to form a mixture of edge and corner-sharing OCe4 tetrahedra. In the third O2- site, O2- is bonded to two equivalent Ce4+ and two equivalent Zr4+ atoms to form a mixture of edge and corner-sharing OCe2Zr2 tetrahedra. In the fourth O2- site, O2- is bonded to four Ce4+ atoms to form a mixture of edge and corner-sharing OCe4 tetrahedra.