Rb2ThF6 crystallizes in the hexagonal P-62m space group. Rb(1) is bonded in a 9-coordinate geometry to three equivalent F(1) and six equivalent F(2) atoms. Th(1) is bonded in a 9-coordinate geometry to three equivalent F(2) and six equivalent F(1) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded to two equivalent Rb(1) and two equivalent Th(1) atoms to form a mixture of corner and edge-sharing FRb2Th2 tetrahedra. In the second F site, F(2) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Th(1) atom.
Rb2ThF6 crystallizes in the hexagonal P-62m space group. Rb(1) is bonded in a 9-coordinate geometry to three equivalent F(1) and six equivalent F(2) atoms. All Rb(1)-F(1) bond lengths are 2.75 Å. All Rb(1)-F(2) bond lengths are 2.97 Å. Th(1) is bonded in a 9-coordinate geometry to three equivalent F(2) and six equivalent F(1) atoms. All Th(1)-F(2) bond lengths are 2.29 Å. All Th(1)-F(1) bond lengths are 2.44 Å. There are two inequivalent F sites. In the first F site, F(1) is bonded to two equivalent Rb(1) and two equivalent Th(1) atoms to form a mixture of corner and edge-sharing FRb2Th2 tetrahedra. In the second F site, F(2) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Th(1) atom.