(NbWO6)2N2 crystallizes in the monoclinic Cm space group. The structure consists of four ammonia atoms inside a NbWO6 framework. In the NbWO6 framework, there are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(4), one O(6), two equivalent O(3), and two equivalent O(5) atoms to form NbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-39°. In the second Nb site, Nb(2) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(7) 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 35-39°. W(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form WO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, and corners with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-37°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Nb(2) and one W(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent W(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 Nb(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Nb(1) and one W(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Nb(1) and one Nb(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Nb(2) and one W(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to two equivalent W(1) atoms.
(NbWO6)2N2 crystallizes in the monoclinic Cm space group. The structure consists of four ammonia atoms inside a NbWO6 framework. In the NbWO6 framework, there are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(4), one O(6), two equivalent O(3), and two equivalent O(5) atoms to form NbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-39°. The Nb(1)-O(4) bond length is 2.03 Å. The Nb(1)-O(6) bond length is 1.98 Å. Both Nb(1)-O(3) bond lengths are 1.99 Å. Both Nb(1)-O(5) bond lengths are 2.01 Å. In the second Nb site, Nb(2) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(7) 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 35-39°. The Nb(2)-O(4) bond length is 2.08 Å. The Nb(2)-O(6) bond length is 1.94 Å. Both Nb(2)-O(1) bond lengths are 1.97 Å. Both Nb(2)-O(7) bond lengths are 2.02 Å. W(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form WO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, and corners with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-37°. The W(1)-O(1) bond length is 1.94 Å. The W(1)-O(2) bond length is 1.94 Å. The W(1)-O(3) bond length is 1.94 Å. The W(1)-O(5) bond length is 1.93 Å. The W(1)-O(7) bond length is 1.92 Å. The W(1)-O(8) bond length is 1.94 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Nb(2) and one W(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent W(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 Nb(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Nb(1) and one W(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Nb(1) and one Nb(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Nb(2) and one W(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to two equivalent W(1) atoms.