Pt2In2O7 crystallizes in the cubic Fd-3m space group. Pt(1) is bonded to six equivalent O(2) atoms to form distorted corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 55°. In(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent In(1) atoms to form OIn4 tetrahedra that share corners with four equivalent O(1)In4 tetrahedra, corners with twelve equivalent O(2)In2Pt2 tetrahedra, and edges with six equivalent O(2)In2Pt2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pt(1) and two equivalent In(1) atoms to form OIn2Pt2 tetrahedra that share corners with two equivalent O(1)In4 tetrahedra, corners with twelve equivalent O(2)In2Pt2 tetrahedra,  an edgeedge with one O(1)In4 tetrahedra, and edges with four equivalent O(2)In2Pt2 tetrahedra.
Pt2In2O7 crystallizes in the cubic Fd-3m space group. Pt(1) is bonded to six equivalent O(2) atoms to form distorted corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 55°. All Pt(1)-O(2) bond lengths are 2.00 Å. In(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. Both In(1)-O(1) bond lengths are 2.17 Å. All In(1)-O(2) bond lengths are 2.37 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent In(1) atoms to form OIn4 tetrahedra that share corners with four equivalent O(1)In4 tetrahedra, corners with twelve equivalent O(2)In2Pt2 tetrahedra, and edges with six equivalent O(2)In2Pt2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pt(1) and two equivalent In(1) atoms to form OIn2Pt2 tetrahedra that share corners with two equivalent O(1)In4 tetrahedra, corners with twelve equivalent O(2)In2Pt2 tetrahedra,  an edgeedge with one O(1)In4 tetrahedra, and edges with four equivalent O(2)In2Pt2 tetrahedra.