Materials Data on U3P2S by Materials Project

Abstract

U3P2S is Caswellsilverite-like structured and crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. there are two inequivalent U sites. In the first U site, U is bonded to six equivalent P atoms to form UP6 octahedra that share corners with six equivalent UP3S3 octahedra and edges with twelve UP6 octahedra. The corner-sharing octahedral tilt angles are 0°. All U–P bond lengths are 2.77 Å. In the second U site, U is bonded to three equivalent P and three equivalent S atoms to form a mixture of corner and edge-sharing UP3S3 octahedra. The corner-sharing octahedral tilt angles are 0°. All U–P bond lengths are 2.77 Å. All U–S bond lengths are 2.76 Å. P is bonded to six U atoms to form PU6 octahedra that share corners with three equivalent PU6 octahedra, corners with three equivalent SU6 octahedra, edges with three equivalent SU6 octahedra, and edges with nine equivalent PU6 octahedra. The corner-sharing octahedral tilt angles are 0°. S is bonded to six equivalent U atoms to form SU6 octahedra that share corners with six equivalent PU6 octahedra, edges with six equivalent PU6 octahedra, and edges with six equivalent SU6 octahedra. The corner-sharing octahedral tilt angles are 0°.