In2Sn2O7 crystallizes in the cubic Fd-3m space group. In(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Sn(1) is bonded to six equivalent O(1) atoms to form corner-sharing SnO6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent In(1) and two equivalent Sn(1) atoms to form distorted OIn2Sn2 tetrahedra that share corners with two equivalent O(2)In4 tetrahedra, corners with twelve equivalent O(1)In2Sn2 tetrahedra,  an edgeedge with one O(2)In4 tetrahedra, and edges with four equivalent O(1)In2Sn2 tetrahedra. In the second O site, O(2) is bonded to four equivalent In(1) atoms to form OIn4 tetrahedra that share corners with four equivalent O(2)In4 tetrahedra, corners with twelve equivalent O(1)In2Sn2 tetrahedra, and edges with six equivalent O(1)In2Sn2 tetrahedra.
In2Sn2O7 crystallizes in the cubic Fd-3m space group. In(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Both In(1)-O(2) bond lengths are 2.25 Å. All In(1)-O(1) bond lengths are 2.46 Å. Sn(1) is bonded to six equivalent O(1) atoms to form corner-sharing SnO6 octahedra. The corner-sharing octahedral tilt angles are 55°. All Sn(1)-O(1) bond lengths are 2.07 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent In(1) and two equivalent Sn(1) atoms to form distorted OIn2Sn2 tetrahedra that share corners with two equivalent O(2)In4 tetrahedra, corners with twelve equivalent O(1)In2Sn2 tetrahedra,  an edgeedge with one O(2)In4 tetrahedra, and edges with four equivalent O(1)In2Sn2 tetrahedra. In the second O site, O(2) is bonded to four equivalent In(1) atoms to form OIn4 tetrahedra that share corners with four equivalent O(2)In4 tetrahedra, corners with twelve equivalent O(1)In2Sn2 tetrahedra, and edges with six equivalent O(1)In2Sn2 tetrahedra.