NaGdO2 crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six O(1,1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Gd(1)O6 octahedra, corners with four equivalent Na(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with eight equivalent Gd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. Gd(1) is bonded to six O(1,1,1) atoms to form GdO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with four equivalent Gd(1)O6 octahedra, edges with four equivalent Gd(1)O6 octahedra, and edges with eight equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Na(1) and three equivalent Gd(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Gd3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the second O site, O(1) is bonded to three equivalent Na(1) and three equivalent Gd(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Gd3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the third O site, O(1) is bonded to three equivalent Na(1) and three equivalent Gd(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Gd3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°.
NaGdO2 crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six O(1,1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Gd(1)O6 octahedra, corners with four equivalent Na(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with eight equivalent Gd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. There are four shorter (2.34 Å) and two longer (2.90 Å) Na(1)-O(1,1) bond lengths. Gd(1) is bonded to six O(1,1,1) atoms to form GdO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with four equivalent Gd(1)O6 octahedra, edges with four equivalent Gd(1)O6 octahedra, and edges with eight equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. There are two shorter (2.33 Å) and four longer (2.34 Å) Gd(1)-O(1,1,1) bond lengths. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Na(1) and three equivalent Gd(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Gd3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the second O site, O(1) is bonded to three equivalent Na(1) and three equivalent Gd(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Gd3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the third O site, O(1) is bonded to three equivalent Na(1) and three equivalent Gd(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Gd3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. There are two shorter (2.34 Å) and one longer (2.90 Å) O(1)-Na(1) bond length.