Pr3Se4 crystallizes in the cubic I-43d space group. Pr(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted face, corner, and edge-sharing PrSe8 hexagonal bipyramids. Se(1) is bonded to six equivalent Pr(1) atoms to form a mixture of distorted face, corner, and edge-sharing SePr6 octahedra. The corner-sharing octahedral tilt angles range from 17-50°.
Pr3Se4 crystallizes in the cubic I-43d space group. Pr(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted face, corner, and edge-sharing PrSe8 hexagonal bipyramids. There are four shorter (3.03 Å) and four longer (3.21 Å) Pr(1)-Se(1) bond lengths. Se(1) is bonded to six equivalent Pr(1) atoms to form a mixture of distorted face, corner, and edge-sharing SePr6 octahedra. The corner-sharing octahedral tilt angles range from 17-50°.