Materials Data on CeHSe by Materials Project
CeHSe crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ce3+ is bonded in a distorted trigonal planar geometry to three equivalent H1- and six equivalent Se2- atoms. All Ce–H bond lengths are 2.31 Å. All Ce–Se bond lengths are 3.04 Å. H1- is bonded in a trigonal planar geometry to three equivalent Ce3+ atoms. Se2- is bonded to six equivalent Ce3+ atoms to form a mixture of face, edge, and corner-sharing SeCe6 octahedra. The corner-sharing octahedral tilt angles are 45°.
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