Materials Data on RbDyS2 by Materials Project

Abstract

RbDyS2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Rb1+ is bonded to six equivalent S2- atoms to form distorted RbS6 octahedra that share corners with six equivalent DyS6 octahedra, edges with six equivalent RbS6 octahedra, and edges with six equivalent DyS6 octahedra. The corner-sharing octahedral tilt angles are 13°. All Rb–S bond lengths are 3.34 Å. Dy3+ is bonded to six equivalent S2- atoms to form DyS6 octahedra that share corners with six equivalent RbS6 octahedra, edges with six equivalent RbS6 octahedra, and edges with six equivalent DyS6 octahedra. The corner-sharing octahedral tilt angles are 13°. All Dy–S bond lengths are 2.78 Å. S2- is bonded to three equivalent Rb1+ and three equivalent Dy3+ atoms to form a mixture of corner and edge-sharing SRb3Dy3 octahedra. The corner-sharing octahedral tilt angles are 0°.