RbPO4 crystallizes in the monoclinic P2_1/m space group. Rb(1) is bonded in a 10-coordinate geometry to one O(1), three equivalent O(2), and six equivalent O(3) atoms. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one P(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Rb(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to three equivalent Rb(1) and one P(1) atom.
RbPO4 crystallizes in the monoclinic P2_1/m space group. Rb(1) is bonded in a 10-coordinate geometry to one O(1), three equivalent O(2), and six equivalent O(3) atoms. The Rb(1)-O(1) bond length is 3.14 Å. There are two shorter (3.21 Å) and one longer (3.31 Å) Rb(1)-O(2) bond length. There are a spread of Rb(1)-O(3) bond distances ranging from 3.06-3.37 Å. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(2) bond length is 1.55 Å. Both P(1)-O(3) bond lengths are 1.54 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one P(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Rb(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to three equivalent Rb(1) and one P(1) atom.