GdO2 is Baddeleyite-like structured and crystallizes in the monoclinic P2_1/m space group. Gd(1) is bonded to three equivalent O(2) and four equivalent O(1) atoms to form a mixture of distorted edge and corner-sharing GdO7 hexagonal pyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Gd(1) atoms to form a mixture of edge and corner-sharing OGd4 tetrahedra. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to three equivalent Gd(1) atoms.
GdO2 is Baddeleyite-like structured and crystallizes in the monoclinic P2_1/m space group. Gd(1) is bonded to three equivalent O(2) and four equivalent O(1) atoms to form a mixture of distorted edge and corner-sharing GdO7 hexagonal pyramids. There is one shorter (2.35 Å) and two longer (2.38 Å) Gd(1)-O(2) bond lengths. There are two shorter (2.29 Å) and two longer (2.36 Å) Gd(1)-O(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Gd(1) atoms to form a mixture of edge and corner-sharing OGd4 tetrahedra. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to three equivalent Gd(1) atoms.