RbHfF5 crystallizes in the orthorhombic Cmce space group. Rb(1) is bonded in a 11-coordinate geometry to one F(1), two equivalent F(2), two equivalent F(4), and six equivalent F(3) atoms. Hf(1) is bonded in a 8-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. There are four inequivalent F sites. In the first F site, F(4) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Hf(1) atoms. In the second F site, F(1) is bonded in a trigonal planar geometry to one Rb(1) and two equivalent Hf(1) atoms. In the third F site, F(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Hf(1) atoms. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to three equivalent Rb(1) and one Hf(1) atom.
RbHfF5 crystallizes in the orthorhombic Cmce space group. Rb(1) is bonded in a 11-coordinate geometry to one F(1), two equivalent F(2), two equivalent F(4), and six equivalent F(3) atoms. The Rb(1)-F(1) bond length is 2.76 Å. Both Rb(1)-F(2) bond lengths are 3.21 Å. Both Rb(1)-F(4) bond lengths are 3.21 Å. There are a spread of Rb(1)-F(3) bond distances ranging from 2.91-3.11 Å. Hf(1) is bonded in a 8-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. Both Hf(1)-F(1) bond lengths are 2.15 Å. There is one shorter (2.04 Å) and one longer (2.19 Å) Hf(1)-F(2) bond length. Both Hf(1)-F(3) bond lengths are 2.00 Å. There is one shorter (2.04 Å) and one longer (2.20 Å) Hf(1)-F(4) bond length. There are four inequivalent F sites. In the first F site, F(4) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Hf(1) atoms. In the second F site, F(1) is bonded in a trigonal planar geometry to one Rb(1) and two equivalent Hf(1) atoms. In the third F site, F(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Hf(1) atoms. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to three equivalent Rb(1) and one Hf(1) atom.