Materials Data on KCeTi2O6 by Materials Project

Abstract

KCeTi2O6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. K1+ is bonded to twelve equivalent O2- atoms to form KO12 cuboctahedra that share corners with twelve equivalent KO12 cuboctahedra, faces with six equivalent CeO12 cuboctahedra, and faces with eight equivalent TiO6 octahedra. All K–O bond lengths are 2.77 Å. Ce3+ is bonded to twelve equivalent O2- atoms to form CeO12 cuboctahedra that share corners with twelve equivalent CeO12 cuboctahedra, faces with six equivalent KO12 cuboctahedra, and faces with eight equivalent TiO6 octahedra. All Ce–O bond lengths are 2.77 Å. Ti4+ is bonded to six equivalent O2- atoms to form TiO6 octahedra that share corners with six equivalent TiO6 octahedra, faces with four equivalent KO12 cuboctahedra, and faces with four equivalent CeO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ti–O bond lengths are 1.96 Å. O2- is bonded in a distorted linear geometry to two equivalent K1+, two equivalent Ce3+, and two equivalent Ti4+ atoms.