W2O7 crystallizes in the cubic Fd-3m space group. W(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded to four equivalent W(1) atoms to form corner-sharing OW4 tetrahedra.
W2O7 crystallizes in the cubic Fd-3m space group. W(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Both W(1)-O(2) bond lengths are 2.21 Å. All W(1)-O(1) bond lengths are 2.01 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded to four equivalent W(1) atoms to form corner-sharing OW4 tetrahedra.