RbK2PdF5 crystallizes in the tetragonal P4/mbm space group. Rb(1) is bonded in a distorted q6 geometry to two equivalent F(2) and eight equivalent F(1) atoms. K(1) is bonded in a 8-coordinate geometry to two equivalent F(2) and six equivalent F(1) atoms. Pd(1) is bonded in a square co-planar geometry to four equivalent F(1) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded to two equivalent Rb(1), three equivalent K(1), and one Pd(1) atom to form distorted FK3Rb2Pd octahedra that share corners with four equivalent F(2)K4Rb2 octahedra, corners with thirteen equivalent F(1)K3Rb2Pd octahedra, edges with five equivalent F(1)K3Rb2Pd octahedra, faces with two equivalent F(2)K4Rb2 octahedra, and faces with three equivalent F(1)K3Rb2Pd octahedra. The corner-sharing octahedral tilt angles range from 0-79°. In the second F site, F(2) is bonded to two equivalent Rb(1) and four equivalent K(1) atoms to form FK4Rb2 octahedra that share corners with six equivalent F(2)K4Rb2 octahedra, corners with sixteen equivalent F(1)K3Rb2Pd octahedra, and faces with eight equivalent F(1)K3Rb2Pd octahedra. The corner-sharing octahedral tilt angles range from 0-64°.
RbK2PdF5 crystallizes in the tetragonal P4/mbm space group. Rb(1) is bonded in a distorted q6 geometry to two equivalent F(2) and eight equivalent F(1) atoms. Both Rb(1)-F(2) bond lengths are 3.18 Å. All Rb(1)-F(1) bond lengths are 3.19 Å. K(1) is bonded in a 8-coordinate geometry to two equivalent F(2) and six equivalent F(1) atoms. Both K(1)-F(2) bond lengths are 2.71 Å. There are two shorter (2.64 Å) and four longer (2.91 Å) K(1)-F(1) bond lengths. Pd(1) is bonded in a square co-planar geometry to four equivalent F(1) atoms. All Pd(1)-F(1) bond lengths are 1.99 Å. There are two inequivalent F sites. In the first F site, F(1) is bonded to two equivalent Rb(1), three equivalent K(1), and one Pd(1) atom to form distorted FK3Rb2Pd octahedra that share corners with four equivalent F(2)K4Rb2 octahedra, corners with thirteen equivalent F(1)K3Rb2Pd octahedra, edges with five equivalent F(1)K3Rb2Pd octahedra, faces with two equivalent F(2)K4Rb2 octahedra, and faces with three equivalent F(1)K3Rb2Pd octahedra. The corner-sharing octahedral tilt angles range from 0-79°. In the second F site, F(2) is bonded to two equivalent Rb(1) and four equivalent K(1) atoms to form FK4Rb2 octahedra that share corners with six equivalent F(2)K4Rb2 octahedra, corners with sixteen equivalent F(1)K3Rb2Pd octahedra, and faces with eight equivalent F(1)K3Rb2Pd octahedra. The corner-sharing octahedral tilt angles range from 0-64°.