Materials Data on Sr3CdO4 by Materials Project

Abstract

Sr3CdO4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sr2+ is bonded to six O2- atoms to form SrO6 octahedra that share corners with six equivalent SrO6 octahedra, edges with four equivalent CdO6 octahedra, and edges with eight equivalent SrO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sr–O bond lengths are 2.55 Å. Cd2+ is bonded to six O2- atoms to form CdO6 octahedra that share corners with six equivalent CdO6 octahedra and edges with twelve equivalent SrO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Cd–O bond lengths are 2.55 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to six equivalent Sr2+ atoms to form OSr6 octahedra that share corners with six equivalent OSr6 octahedra and edges with twelve OSr4Cd2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Cd2+ atoms to form OSr4Cd2 octahedra that share corners with six equivalent OSr4Cd2 octahedra and edges with twelve OSr6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the third O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Cd2+ atoms to form OSr4Cd2 octahedra that share corners with six equivalent OSr4Cd2 octahedra and edges with twelve OSr6 octahedra. The corner-sharing octahedral tilt angles are 0°. All O–Sr bond lengths are 2.55 Å. In the fourth O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Cd2+ atoms to form OSr4Cd2 octahedra that share corners with six equivalent OSr4Cd2 octahedra and edges with twelve OSr6 octahedra. The corner-sharing octahedral tilt angles are 0°.