Materials Data on CeHfO4 by Materials Project

Abstract

CeHfO4 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. there are four inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. There are four shorter (2.33 Å) and four longer (2.39 Å) Ce–O bond lengths. In the second Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. There are four shorter (2.33 Å) and four longer (2.39 Å) Ce–O bond lengths. In the third Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. There are four shorter (2.33 Å) and four longer (2.39 Å) Ce–O bond lengths. In the fourth Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. There are four shorter (2.33 Å) and four longer (2.39 Å) Ce–O bond lengths. There are four inequivalent Hf4+ sites. In the first Hf4+ site, Hf4+ is bonded to eight equivalent O2- atoms to form distorted edge-sharing HfO8 tetrahedra. There are four shorter (2.04 Å) and four longer (2.58 Å) Hf–O bond lengths. In the second Hf4+ site, Hf4+ is bonded to eight equivalent O2- atoms to form distorted edge-sharing HfO8 tetrahedra. There are four shorter (2.04 Å) and four longer (2.58 Å) Hf–O bond lengths. In the third Hf4+ site, Hf4+ is bonded to eight equivalent O2- atoms to form distorted edge-sharing HfO8 tetrahedra. There are four shorter (2.04 Å) and four longer (2.58 Å) Hf–O bond lengths. In the fourth Hf4+ site, Hf4+ is bonded to eight equivalent O2- atoms to form distorted edge-sharing HfO8 tetrahedra. There are four shorter (2.04 Å) and four longer (2.58 Å) Hf–O bond lengths. O2- is bonded in a 4-coordinate geometry to two Ce4+ and two Hf4+ atoms.