GdHSe crystallizes in the hexagonal P-6m2 space group. Gd(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 Gd(1) atoms. Se(1) is bonded to six equivalent Gd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SeGd6 pentagonal pyramids.
GdHSe crystallizes in the hexagonal P-6m2 space group. Gd(1) is bonded in a distorted trigonal planar geometry to three equivalent H(1) and six equivalent Se(1) atoms. All Gd(1)-H(1) bond lengths are 2.24 Å. All Gd(1)-Se(1) bond lengths are 2.99 Å. H(1) is bonded in a trigonal planar geometry to three equivalent Gd(1) atoms. Se(1) is bonded to six equivalent Gd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SeGd6 pentagonal pyramids.