CoCr2Se4 crystallizes in the triclinic P-1 space group. Cr(1) is bonded in a 6-coordinate geometry to three equivalent Se(1) and three equivalent Se(2) atoms. Co(1) is bonded in a square co-planar geometry to two equivalent Se(1) and two equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted see-saw-like geometry to three equivalent Cr(1) and one Co(1) atom. In the second Se site, Se(2) is bonded in a distorted square co-planar geometry to three equivalent Cr(1) and one Co(1) atom.
CoCr2Se4 crystallizes in the triclinic P-1 space group. Cr(1) is bonded in a 6-coordinate geometry to three equivalent Se(1) and three equivalent Se(2) atoms. There are a spread of Cr(1)-Se(1) bond distances ranging from 2.52-2.59 Å. There are a spread of Cr(1)-Se(2) bond distances ranging from 2.49-2.68 Å. Co(1) is bonded in a square co-planar geometry to two equivalent Se(1) and two equivalent Se(2) atoms. Both Co(1)-Se(1) bond lengths are 2.38 Å. Both Co(1)-Se(2) bond lengths are 2.38 Å. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted see-saw-like geometry to three equivalent Cr(1) and one Co(1) atom. In the second Se site, Se(2) is bonded in a distorted square co-planar geometry to three equivalent Cr(1) and one Co(1) atom.