W2N3 crystallizes in the monoclinic Cm space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of distorted edge and corner-sharing WN6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 4-45°. In the second W site, W(2) is bonded to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of distorted edge, face, and corner-sharing WN6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 1°. In the third W site, W(3) is bonded to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of edge, face, and corner-sharing WN6 octahedra. There are four inequivalent N sites. In the first N site, N(1) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms. In the second N site, N(2) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms. In the third N site, N(3) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms. In the fourth N site, N(4) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms.
W2N3 crystallizes in the monoclinic Cm space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of distorted edge and corner-sharing WN6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 4-45°. The W(1)-N(1) bond length is 2.11 Å. The W(1)-N(4) bond length is 2.10 Å. There is one shorter (2.11 Å) and one longer (2.13 Å) W(1)-N(2) bond length. There is one shorter (2.09 Å) and one longer (2.11 Å) W(1)-N(3) bond length. In the second W site, W(2) is bonded to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of distorted edge, face, and corner-sharing WN6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 1°. The W(2)-N(1) bond length is 2.07 Å. The W(2)-N(4) bond length is 2.09 Å. Both W(2)-N(2) bond lengths are 2.08 Å. Both W(2)-N(3) bond lengths are 2.09 Å. In the third W site, W(3) is bonded to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of edge, face, and corner-sharing WN6 octahedra. The W(3)-N(1) bond length is 1.98 Å. The W(3)-N(4) bond length is 2.11 Å. Both W(3)-N(2) bond lengths are 2.01 Å. Both W(3)-N(3) bond lengths are 2.10 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms. In the second N site, N(2) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms. In the third N site, N(3) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms. In the fourth N site, N(4) is bonded in a rectangular see-saw-like geometry to one W(2), one W(3), and two equivalent W(1) atoms.