CeHSe crystallizes in the hexagonal P6_3/mmc space group. Ce(1) is bonded in a distorted trigonal planar geometry to three equivalent H(1) and six equivalent Se(1) atoms. H(1) is bonded in a trigonal planar geometry to three equivalent Ce(1) atoms. Se(1) is bonded to six equivalent Ce(1) atoms to form a mixture of face, corner, and edge-sharing SeCe6 octahedra. The corner-sharing octahedral tilt angles are 45°.
CeHSe crystallizes in the hexagonal P6_3/mmc space group. Ce(1) is bonded in a distorted trigonal planar geometry to three equivalent H(1) and six equivalent Se(1) atoms. All Ce(1)-H(1) bond lengths are 2.33 Å. All Ce(1)-Se(1) bond lengths are 3.08 Å. H(1) is bonded in a trigonal planar geometry to three equivalent Ce(1) atoms. Se(1) is bonded to six equivalent Ce(1) atoms to form a mixture of face, corner, and edge-sharing SeCe6 octahedra. The corner-sharing octahedral tilt angles are 45°.