Y2V2O7 crystallizes in the monoclinic C2/m space group. Y(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted edge-sharing YO6 pentagonal pyramids. V(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Y(1) and one V(1) atom. In the second O site, O(2) is bonded to two equivalent Y(1) and two equivalent V(1) atoms to form distorted edge-sharing OY2V2 trigonal pyramids. In the third O site, O(3) is bonded in a linear geometry to two equivalent V(1) atoms.
Y2V2O7 crystallizes in the monoclinic C2/m space group. Y(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted edge-sharing YO6 pentagonal pyramids. Both Y(1)-O(2) bond lengths are 2.31 Å. There are two shorter (2.24 Å) and two longer (2.30 Å) Y(1)-O(1) bond lengths. V(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. The V(1)-O(3) bond length is 1.80 Å. Both V(1)-O(1) bond lengths are 1.84 Å. There is one shorter (1.86 Å) and one longer (2.47 Å) V(1)-O(2) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Y(1) and one V(1) atom. In the second O site, O(2) is bonded to two equivalent Y(1) and two equivalent V(1) atoms to form distorted edge-sharing OY2V2 trigonal pyramids. In the third O site, O(3) is bonded in a linear geometry to two equivalent V(1) atoms.