KGdPdO3 crystallizes in the monoclinic C2/m space group. K(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(3), and three equivalent O(2) atoms. Gd(1) is bonded in a 7-coordinate geometry to two equivalent O(2), two equivalent O(3), and three equivalent O(1) atoms. Pd(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent K(1), three equivalent Gd(1), and one Pd(1) atom to form distorted OK2Gd3Pd octahedra that share corners with five equivalent O(2)K3Gd2Pd octahedra, edges with four equivalent O(1)K2Gd3Pd octahedra, and edges with four equivalent O(2)K3Gd2Pd octahedra. The corner-sharing octahedral tilt angles range from 8-10°. In the second O site, O(2) is bonded to three equivalent K(1), two equivalent Gd(1), and one Pd(1) atom to form distorted OK3Gd2Pd octahedra that share corners with five equivalent O(1)K2Gd3Pd octahedra, edges with four equivalent O(1)K2Gd3Pd octahedra, and edges with four equivalent O(2)K3Gd2Pd octahedra. The corner-sharing octahedral tilt angles range from 8-10°. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent Gd(1), and two equivalent Pd(1) atoms.
KGdPdO3 crystallizes in the monoclinic C2/m space group. K(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(3), and three equivalent O(2) atoms. Both K(1)-O(1) bond lengths are 2.99 Å. There is one shorter (2.95 Å) and one longer (3.08 Å) K(1)-O(3) bond length. There is one shorter (2.65 Å) and two longer (3.00 Å) K(1)-O(2) bond lengths. Gd(1) is bonded in a 7-coordinate geometry to two equivalent O(2), two equivalent O(3), and three equivalent O(1) atoms. Both Gd(1)-O(2) bond lengths are 2.44 Å. There is one shorter (2.35 Å) and one longer (2.39 Å) Gd(1)-O(3) bond length. There is one shorter (2.28 Å) and two longer (2.57 Å) Gd(1)-O(1) bond lengths. Pd(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), and two equivalent O(3) atoms. The Pd(1)-O(1) bond length is 2.10 Å. The Pd(1)-O(2) bond length is 2.06 Å. Both Pd(1)-O(3) bond lengths are 2.00 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent K(1), three equivalent Gd(1), and one Pd(1) atom to form distorted OK2Gd3Pd octahedra that share corners with five equivalent O(2)K3Gd2Pd octahedra, edges with four equivalent O(1)K2Gd3Pd octahedra, and edges with four equivalent O(2)K3Gd2Pd octahedra. The corner-sharing octahedral tilt angles range from 8-10°. In the second O site, O(2) is bonded to three equivalent K(1), two equivalent Gd(1), and one Pd(1) atom to form distorted OK3Gd2Pd octahedra that share corners with five equivalent O(1)K2Gd3Pd octahedra, edges with four equivalent O(1)K2Gd3Pd octahedra, and edges with four equivalent O(2)K3Gd2Pd octahedra. The corner-sharing octahedral tilt angles range from 8-10°. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent Gd(1), and two equivalent Pd(1) atoms.