(HoP2H5O9)2O2 crystallizes in the triclinic P-1 space group. The structure consists of one hydrogen peroxide molecule inside a HoP2H5O9 framework. In the HoP2H5O9 framework, Ho(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(5), one O(6), two equivalent O(2), and two equivalent O(7) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(4), one O(6), one O(8), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(2), one O(3), one O(7), and one O(8) atom to form corner-sharing PO4 tetrahedra. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. In the third H site, H(3) is bonded in a linear geometry to one O(4) and one O(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(1) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(5) atom. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a distorted bent 120 degrees geometry to one P(1) and one H(3) atom. In the second O site, O(1) is bonded in a distorted water-like geometry to one Ho(1), one H(2), and one H(4) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Ho(1) and one P(2) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one Ho(1) and one P(2) atom. In the fifth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one H(3) atom. In the sixth O site, O(5) is bonded in a distorted water-like geometry to one Ho(1), one H(1), and one H(5) atom. In the seventh O site, O(6) is bonded in a bent 150 degrees geometry to one Ho(1) and one P(1) atom. In the eighth O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Ho(1) and one P(2) atom. In the ninth O site, O(8) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom.
(HoP2H5O9)2O2 crystallizes in the triclinic P-1 space group. The structure consists of one hydrogen peroxide molecule inside a HoP2H5O9 framework. In the HoP2H5O9 framework, Ho(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(5), one O(6), two equivalent O(2), and two equivalent O(7) atoms. The Ho(1)-O(1) bond length is 2.41 Å. The Ho(1)-O(3) bond length is 2.27 Å. The Ho(1)-O(5) bond length is 2.44 Å. The Ho(1)-O(6) bond length is 2.27 Å. There is one shorter (2.25 Å) and one longer (2.58 Å) Ho(1)-O(2) bond length. There is one shorter (2.26 Å) and one longer (2.48 Å) Ho(1)-O(7) bond length. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(4), one O(6), one O(8), and one O(9) atom to form corner-sharing PO4 tetrahedra. The P(1)-O(4) bond length is 1.58 Å. The P(1)-O(6) bond length is 1.51 Å. The P(1)-O(8) bond length is 1.63 Å. The P(1)-O(9) bond length is 1.53 Å. In the second P site, P(2) is bonded to one O(2), one O(3), one O(7), and one O(8) atom to form corner-sharing PO4 tetrahedra. The P(2)-O(2) bond length is 1.54 Å. The P(2)-O(3) bond length is 1.51 Å. The P(2)-O(7) bond length is 1.54 Å. The P(2)-O(8) bond length is 1.62 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. The H(1)-O(5) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. The H(2)-O(1) bond length is 0.99 Å. In the third H site, H(3) is bonded in a linear geometry to one O(4) and one O(9) atom. The H(3)-O(4) bond length is 1.01 Å. The H(3)-O(9) bond length is 1.66 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(1) atom. The H(4)-O(1) bond length is 0.97 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(5) atom. The H(5)-O(5) bond length is 0.99 Å. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a distorted bent 120 degrees geometry to one P(1) and one H(3) atom. In the second O site, O(1) is bonded in a distorted water-like geometry to one Ho(1), one H(2), and one H(4) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Ho(1) and one P(2) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one Ho(1) and one P(2) atom. In the fifth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one H(3) atom. In the sixth O site, O(5) is bonded in a distorted water-like geometry to one Ho(1), one H(1), and one H(5) atom. In the seventh O site, O(6) is bonded in a bent 150 degrees geometry to one Ho(1) and one P(1) atom. In the eighth O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Ho(1) and one P(2) atom. In the ninth O site, O(8) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom.