CeSe2 crystallizes in the cubic Fd-3m space group. Ce(1) is bonded to one Se(2) and three equivalent Se(1) atoms to form corner-sharing CeSe4 tetrahedra. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a bent 120 degrees geometry to two equivalent Ce(1) atoms. In the second Se site, Se(2) is bonded in a linear geometry to two equivalent Ce(1) atoms.
CeSe2 crystallizes in the cubic Fd-3m space group. Ce(1) is bonded to one Se(2) and three equivalent Se(1) atoms to form corner-sharing CeSe4 tetrahedra. The Ce(1)-Se(2) bond length is 2.73 Å. All Ce(1)-Se(1) bond lengths are 2.73 Å. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a bent 120 degrees geometry to two equivalent Ce(1) atoms. In the second Se site, Se(2) is bonded in a linear geometry to two equivalent Ce(1) atoms.