Cs2PrF6 crystallizes in the hexagonal P-62m space group. Cs(1) is bonded in a 9-coordinate geometry to three equivalent F(1) and six equivalent F(2) atoms. Pr(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 Cs(1) and two equivalent Pr(1) atoms to form a mixture of corner and edge-sharing FCs2Pr2 tetrahedra. In the second F site, F(2) is bonded in a 5-coordinate geometry to four equivalent Cs(1) and one Pr(1) atom.
Cs2PrF6 crystallizes in the hexagonal P-62m space group. Cs(1) is bonded in a 9-coordinate geometry to three equivalent F(1) and six equivalent F(2) atoms. All Cs(1)-F(1) bond lengths are 2.95 Å. All Cs(1)-F(2) bond lengths are 3.11 Å. Pr(1) is bonded in a 9-coordinate geometry to three equivalent F(2) and six equivalent F(1) atoms. All Pr(1)-F(2) bond lengths are 2.38 Å. All Pr(1)-F(1) bond lengths are 2.47 Å. There are two inequivalent F sites. In the first F site, F(1) is bonded to two equivalent Cs(1) and two equivalent Pr(1) atoms to form a mixture of corner and edge-sharing FCs2Pr2 tetrahedra. In the second F site, F(2) is bonded in a 5-coordinate geometry to four equivalent Cs(1) and one Pr(1) atom.