RbPH4O5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one H(2), one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(1) and one O(3) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one Rb(1) and one O(5) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(5) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(1) and one O(2) atom. There are five inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to two equivalent Rb(1), one P(1), and one H(1) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one P(1) atom. In the third O site, O(5) is bonded in a water-like geometry to two equivalent Rb(1), one H(2), and one H(3) atom. In the fourth O site, O(1) is bonded in a distorted trigonal planar geometry to one Rb(1), one P(1), one H(1), and one H(4) atom. In the fifth O site, O(2) is bonded in a distorted water-like geometry to one Rb(1), one P(1), and one H(4) atom.
RbPH4O5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one H(2), one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. The Rb(1)-H(2) bond length is 3.13 Å. The Rb(1)-O(1) bond length is 3.29 Å. The Rb(1)-O(2) bond length is 3.08 Å. Both Rb(1)-O(3) bond lengths are 3.16 Å. There is one shorter (2.91 Å) and one longer (3.20 Å) Rb(1)-O(4) bond length. There is one shorter (2.92 Å) and one longer (3.07 Å) Rb(1)-O(5) bond length. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.60 Å. The P(1)-O(3) bond length is 1.60 Å. The P(1)-O(4) bond length is 1.51 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(1) and one O(3) atom. The H(1)-O(1) bond length is 1.63 Å. The H(1)-O(3) bond length is 1.01 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one Rb(1) and one O(5) atom. The H(2)-O(5) bond length is 1.00 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(5) atom. The H(3)-O(5) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(1) and one O(2) atom. The H(4)-O(1) bond length is 1.69 Å. The H(4)-O(2) bond length is 1.01 Å. There are five inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to two equivalent Rb(1), one P(1), and one H(1) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one P(1) atom. In the third O site, O(5) is bonded in a water-like geometry to two equivalent Rb(1), one H(2), and one H(3) atom. In the fourth O site, O(1) is bonded in a distorted trigonal planar geometry to one Rb(1), one P(1), one H(1), and one H(4) atom. In the fifth O site, O(2) is bonded in a distorted water-like geometry to one Rb(1), one P(1), and one H(4) atom.