Materials Data on U3Se4 by Materials Project
U3Se4 crystallizes in the cubic I-43d space group. The structure is three-dimensional. U is bonded to eight equivalent Se atoms to form a mixture of distorted corner, edge, and face-sharing USe8 hexagonal bipyramids. There are four shorter (2.94 Å) and four longer (3.07 Å) U–Se bond lengths. Se is bonded to six equivalent U atoms to form a mixture of distorted corner, edge, and face-sharing SeU6 octahedra. The corner-sharing octahedra tilt angles range from 17–50°.