Materials Data on CeOF by Materials Project

Abstract

CeOF crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ce3+ is bonded in a body-centered cubic geometry to four equivalent O2- and four equivalent F1- atoms. There are one shorter (2.36 Å) and three longer (2.38 Å) Ce–O bond lengths. There are three shorter (2.57 Å) and one longer (2.60 Å) Ce–F bond lengths. O2- is bonded to four equivalent Ce3+ atoms to form distorted OCe4 tetrahedra that share corners with six equivalent OCe4 tetrahedra, corners with ten equivalent FCe4 tetrahedra, edges with three equivalent OCe4 tetrahedra, and edges with three equivalent FCe4 tetrahedra. F1- is bonded to four equivalent Ce3+ atoms to form distorted FCe4 tetrahedra that share corners with six equivalent FCe4 tetrahedra, corners with ten equivalent OCe4 tetrahedra, edges with three equivalent OCe4 tetrahedra, and edges with three equivalent FCe4 tetrahedra.