TlP2H5O8 crystallizes in the monoclinic C2/c space group. The structure consists of four 7440-28-0 atoms inside a P2H5O8 framework. In the P2H5O8 framework, 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 three inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(2) atom. In the second H site, H(2) is bonded in a linear geometry to one O(1) and one O(3) atom. In the third H site, H(3) is bonded in a linear geometry to two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one P(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one P(1) and one H(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one H(3) atom.
TlP2H5O8 crystallizes in the monoclinic C2/c space group. The structure consists of four 7440-28-0 atoms inside a P2H5O8 framework. In the P2H5O8 framework, 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 1.53 Å. The P(1)-O(2) bond length is 1.58 Å. The P(1)-O(3) bond length is 1.59 Å. The P(1)-O(4) bond length is 1.54 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(2) atom. The H(1)-O(1) bond length is 1.61 Å. The H(1)-O(2) bond length is 1.02 Å. In the second H site, H(2) is bonded in a linear geometry to one O(1) and one O(3) atom. The H(2)-O(1) bond length is 1.51 Å. The H(2)-O(3) bond length is 1.04 Å. In the third H site, H(3) is bonded in a linear geometry to two equivalent O(4) atoms. Both H(3)-O(4) bond lengths are 1.20 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one P(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one P(1) and one H(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one H(3) atom.