Dy3Se4 crystallizes in the cubic I-43d space group. Dy(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted corner, face, and edge-sharing DySe8 hexagonal bipyramids. Se(1) is bonded to six equivalent Dy(1) atoms to form a mixture of distorted corner, face, and edge-sharing SeDy6 octahedra. The corner-sharing octahedral tilt angles range from 18-49°.
Dy3Se4 crystallizes in the cubic I-43d space group. Dy(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted corner, face, and edge-sharing DySe8 hexagonal bipyramids. There are four shorter (2.90 Å) and four longer (3.12 Å) Dy(1)-Se(1) bond lengths. Se(1) is bonded to six equivalent Dy(1) atoms to form a mixture of distorted corner, face, and edge-sharing SeDy6 octahedra. The corner-sharing octahedral tilt angles range from 18-49°.