WN2 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one N(1), one N(3), one N(4), and one N(6) atom to form corner-sharing WN4 tetrahedra. In the second W site, W(2) is bonded to one N(1), one N(2), one N(4), and one N(5) atom to form corner-sharing WN4 tetrahedra. In the third W site, W(3) is bonded to one N(2), one N(3), one N(5), and one N(6) atom to form corner-sharing WN4 tetrahedra. There are six inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one W(2) and one W(3) atom. In the third N site, N(3) is bonded in a bent 120 degrees geometry to one W(1) and one W(3) atom. In the fourth N site, N(4) is bonded in a bent 120 degrees geometry to one W(1) and one W(2) atom. In the fifth N site, N(5) is bonded in a bent 150 degrees geometry to one W(2) and one W(3) atom. In the sixth N site, N(6) is bonded in a bent 120 degrees geometry to one W(1) and one W(3) atom.
WN2 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one N(1), one N(3), one N(4), and one N(6) atom to form corner-sharing WN4 tetrahedra. The W(1)-N(1) bond length is 1.86 Å. The W(1)-N(3) bond length is 1.88 Å. The W(1)-N(4) bond length is 1.89 Å. The W(1)-N(6) bond length is 1.87 Å. In the second W site, W(2) is bonded to one N(1), one N(2), one N(4), and one N(5) atom to form corner-sharing WN4 tetrahedra. The W(2)-N(1) bond length is 1.89 Å. The W(2)-N(2) bond length is 1.87 Å. The W(2)-N(4) bond length is 1.86 Å. The W(2)-N(5) bond length is 1.86 Å. In the third W site, W(3) is bonded to one N(2), one N(3), one N(5), and one N(6) atom to form corner-sharing WN4 tetrahedra. The W(3)-N(2) bond length is 1.87 Å. The W(3)-N(3) bond length is 1.87 Å. The W(3)-N(5) bond length is 1.86 Å. The W(3)-N(6) bond length is 1.88 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one W(2) and one W(3) atom. In the third N site, N(3) is bonded in a bent 120 degrees geometry to one W(1) and one W(3) atom. In the fourth N site, N(4) is bonded in a bent 120 degrees geometry to one W(1) and one W(2) atom. In the fifth N site, N(5) is bonded in a bent 150 degrees geometry to one W(2) and one W(3) atom. In the sixth N site, N(6) is bonded in a bent 120 degrees geometry to one W(1) and one W(3) atom.