Ba(PrSe2)2 crystallizes in the tetragonal I-42d space group. Ba(1) is bonded in a 8-coordinate geometry to eight equivalent Se(1) atoms. Pr(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted edge, face, and corner-sharing PrSe8 hexagonal bipyramids. Se(1) is bonded to two equivalent Ba(1) and four equivalent Pr(1) atoms to form a mixture of distorted edge, face, and corner-sharing SeBa2Pr4 octahedra. The corner-sharing octahedral tilt angles range from 16-51°.
Ba(PrSe2)2 crystallizes in the tetragonal I-42d space group. Ba(1) is bonded in a 8-coordinate geometry to eight equivalent Se(1) atoms. There are four shorter (3.20 Å) and four longer (3.37 Å) Ba(1)-Se(1) bond lengths. Pr(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted edge, face, and corner-sharing PrSe8 hexagonal bipyramids. There are a spread of Pr(1)-Se(1) bond distances ranging from 3.01-3.36 Å. Se(1) is bonded to two equivalent Ba(1) and four equivalent Pr(1) atoms to form a mixture of distorted edge, face, and corner-sharing SeBa2Pr4 octahedra. The corner-sharing octahedral tilt angles range from 16-51°.