Materials Data on RbPrSe2 by Materials Project
RbPrSe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Rb1+ is bonded to six equivalent Se2- atoms to form distorted RbSe6 octahedra that share corners with six equivalent PrSe6 octahedra, edges with six equivalent RbSe6 octahedra, and edges with six equivalent PrSe6 octahedra. The corner-sharing octahedral tilt angles are 11°. All Rb–Se bond lengths are 3.50 Å. Pr3+ is bonded to six equivalent Se2- atoms to form PrSe6 octahedra that share corners with six equivalent RbSe6 octahedra, edges with six equivalent RbSe6 octahedra, and edges with six equivalent PrSe6 octahedra. The corner-sharing octahedral tilt angles are 11°. All Pr–Se bond lengths are 3.02 Å. Se2- is bonded to three equivalent Rb1+ and three equivalent Pr3+ atoms to form a mixture of edge and corner-sharing SeRb3Pr3 octahedra. The corner-sharing octahedral tilt angles are 0°.