RbCoCuF6 crystallizes in the orthorhombic Imma space group. Rb(1) is bonded to one F(1), one F(2), and four equivalent F(3) atoms to form RbF6 octahedra that share corners with six equivalent Co(1)F6 octahedra and corners with six equivalent Cu(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 67-68°. Co(1) is bonded to two equivalent F(1) and four equivalent F(3) atoms to form CoF6 octahedra that share corners with two equivalent Co(1)F6 octahedra, corners with four equivalent Cu(1)F6 octahedra, and corners with six equivalent Rb(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 44-68°. Cu(1) is bonded to two equivalent F(2) and four equivalent F(3) atoms to form CuF6 octahedra that share corners with two equivalent Cu(1)F6 octahedra, corners with four equivalent Co(1)F6 octahedra, and corners with six equivalent Rb(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 45-68°. There are three inequivalent F sites. In the first F site, F(1) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent Co(1) atoms. In the second F site, F(2) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent Cu(1) atoms. In the third F site, F(3) is bonded in a 2-coordinate geometry to one Rb(1), one Co(1), and one Cu(1) atom.
RbCoCuF6 crystallizes in the orthorhombic Imma space group. Rb(1) is bonded to one F(1), one F(2), and four equivalent F(3) atoms to form RbF6 octahedra that share corners with six equivalent Co(1)F6 octahedra and corners with six equivalent Cu(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 67-68°. The Rb(1)-F(1) bond length is 3.17 Å. The Rb(1)-F(2) bond length is 3.10 Å. All Rb(1)-F(3) bond lengths are 3.10 Å. Co(1) is bonded to two equivalent F(1) and four equivalent F(3) atoms to form CoF6 octahedra that share corners with two equivalent Co(1)F6 octahedra, corners with four equivalent Cu(1)F6 octahedra, and corners with six equivalent Rb(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 44-68°. Both Co(1)-F(1) bond lengths are 1.98 Å. All Co(1)-F(3) bond lengths are 1.93 Å. Cu(1) is bonded to two equivalent F(2) and four equivalent F(3) atoms to form CuF6 octahedra that share corners with two equivalent Cu(1)F6 octahedra, corners with four equivalent Co(1)F6 octahedra, and corners with six equivalent Rb(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 45-68°. Both Cu(1)-F(2) bond lengths are 1.96 Å. All Cu(1)-F(3) bond lengths are 2.03 Å. There are three inequivalent F sites. In the first F site, F(1) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent Co(1) atoms. In the second F site, F(2) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent Cu(1) atoms. In the third F site, F(3) is bonded in a 2-coordinate geometry to one Rb(1), one Co(1), and one Cu(1) atom.