(NbWO6)2O2 crystallizes in the orthorhombic Ima2 space group. The structure consists of four water atoms inside a NbWO6 framework. In the NbWO6 framework, Nb(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form NbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-38°. W(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-37°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Nb(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Nb(1) and one W(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Nb(1) and one W(1) atom.
(NbWO6)2O2 crystallizes in the orthorhombic Ima2 space group. The structure consists of four water atoms inside a NbWO6 framework. In the NbWO6 framework, Nb(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form NbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-38°. Both Nb(1)-O(2) bond lengths are 1.99 Å. Both Nb(1)-O(3) bond lengths are 2.02 Å. Both Nb(1)-O(4) bond lengths are 1.99 Å. W(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-37°. There is one shorter (1.94 Å) and one longer (1.96 Å) W(1)-O(1) bond length. Both W(1)-O(3) bond lengths are 1.93 Å. Both W(1)-O(4) bond lengths are 1.93 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Nb(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Nb(1) and one W(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Nb(1) and one W(1) atom.