(InPO5)2O2 crystallizes in the monoclinic P2_1/c space group. The structure consists of two hydrogen peroxide molecules inside a InPO5 framework. In the InPO5 framework, In(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form InO5 trigonal bipyramids that share corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent In(1)O5 trigonal bipyramids. There are five inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one In(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one In(1) and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one In(1), one P(1), and one O(5) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one In(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one In(1) and one O(3) atom.
(InPO5)2O2 crystallizes in the monoclinic P2_1/c space group. The structure consists of two hydrogen peroxide molecules inside a InPO5 framework. In the InPO5 framework, In(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form InO5 trigonal bipyramids that share corners with four equivalent P(1)O4 tetrahedra. The In(1)-O(1) bond length is 2.08 Å. The In(1)-O(2) bond length is 2.15 Å. The In(1)-O(3) bond length is 2.31 Å. The In(1)-O(4) bond length is 2.10 Å. The In(1)-O(5) bond length is 2.13 Å. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent In(1)O5 trigonal bipyramids. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.52 Å. The P(1)-O(3) bond length is 1.70 Å. The P(1)-O(4) bond length is 1.54 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one In(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one In(1) and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one In(1), one P(1), and one O(5) atom. The O(3)-O(5) bond length is 1.49 Å. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one In(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one In(1) and one O(3) atom.