GdH3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Gd(1) is bonded in a 11-coordinate geometry to three equivalent H(2) and eight equivalent H(1) atoms. There are two inequivalent H sites. In the first H site, H(1) is bonded to four equivalent Gd(1) atoms to form a mixture of corner, edge, and face-sharing HGd4 tetrahedra. In the second H site, H(2) is bonded in a trigonal planar geometry to three equivalent Gd(1) atoms.
GdH3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Gd(1) is bonded in a 11-coordinate geometry to three equivalent H(2) and eight equivalent H(1) atoms. All Gd(1)-H(2) bond lengths are 2.15 Å. There are two shorter (2.30 Å) and six longer (2.39 Å) Gd(1)-H(1) bond lengths. There are two inequivalent H sites. In the first H site, H(1) is bonded to four equivalent Gd(1) atoms to form a mixture of corner, edge, and face-sharing HGd4 tetrahedra. In the second H site, H(2) is bonded in a trigonal planar geometry to three equivalent Gd(1) atoms.