K3W2N5 crystallizes in the tetragonal I4_1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms. In the second K site, K(2) is bonded in a distorted trigonal non-coplanar geometry to one N(1) and two equivalent N(5) atoms. In the third K site, K(3) is bonded in a 8-coordinate geometry to two equivalent N(2), two equivalent N(3), two equivalent N(4), and two equivalent N(5) atoms. In the fourth K site, K(4) is bonded in a distorted rectangular see-saw-like geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one N(1), one N(5), and two equivalent N(3) atoms to form corner-sharing WN4 tetrahedra. In the second W site, W(2) is bonded to one N(2), one N(5), and two equivalent N(4) atoms to form corner-sharing WN4 tetrahedra. There are five inequivalent N sites. In the first N site, N(1) is bonded in a rectangular see-saw-like geometry to one K(1), one K(2), one K(4), and one W(1) atom. In the second N site, N(2) is bonded to one K(3), one K(4), two equivalent K(1), and one W(2) atom to form a mixture of distorted corner and edge-sharing NK4W trigonal bipyramids. In the third N site, N(3) is bonded in a 2-coordinate geometry to one K(3), two equivalent K(1), and two equivalent W(1) atoms. In the fourth N site, N(4) is bonded in a distorted bent 150 degrees geometry to one K(1), one K(3), and two equivalent W(2) atoms. In the fifth N site, N(5) is bonded in a 5-coordinate geometry to one K(3), two equivalent K(2), one W(1), and one W(2) atom.
K3W2N5 crystallizes in the tetragonal I4_1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one N(1), one N(4), two equivalent N(2), and two equivalent N(3) atoms. The K(1)-N(1) bond length is 2.72 Å. The K(1)-N(4) bond length is 3.33 Å. There is one shorter (2.90 Å) and one longer (2.91 Å) K(1)-N(2) bond length. There is one shorter (2.90 Å) and one longer (3.25 Å) K(1)-N(3) bond length. In the second K site, K(2) is bonded in a distorted trigonal non-coplanar geometry to one N(1) and two equivalent N(5) atoms. The K(2)-N(1) bond length is 2.69 Å. There is one shorter (2.83 Å) and one longer (3.02 Å) K(2)-N(5) bond length. In the third K site, K(3) is bonded in a 8-coordinate geometry to two equivalent N(2), two equivalent N(3), two equivalent N(4), and two equivalent N(5) atoms. Both K(3)-N(2) bond lengths are 2.89 Å. Both K(3)-N(3) bond lengths are 3.28 Å. Both K(3)-N(4) bond lengths are 3.31 Å. Both K(3)-N(5) bond lengths are 3.13 Å. In the fourth K site, K(4) is bonded in a distorted rectangular see-saw-like geometry to two equivalent N(1) and two equivalent N(2) atoms. Both K(4)-N(1) bond lengths are 2.71 Å. Both K(4)-N(2) bond lengths are 2.77 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded to one N(1), one N(5), and two equivalent N(3) atoms to form corner-sharing WN4 tetrahedra. The W(1)-N(1) bond length is 1.77 Å. The W(1)-N(5) bond length is 1.95 Å. There is one shorter (1.91 Å) and one longer (1.92 Å) W(1)-N(3) bond length. In the second W site, W(2) is bonded to one N(2), one N(5), and two equivalent N(4) atoms to form corner-sharing WN4 tetrahedra. The W(2)-N(2) bond length is 1.78 Å. The W(2)-N(5) bond length is 1.93 Å. Both W(2)-N(4) bond lengths are 1.92 Å. There are five inequivalent N sites. In the first N site, N(1) is bonded in a rectangular see-saw-like geometry to one K(1), one K(2), one K(4), and one W(1) atom. In the second N site, N(2) is bonded to one K(3), one K(4), two equivalent K(1), and one W(2) atom to form a mixture of distorted corner and edge-sharing NK4W trigonal bipyramids. In the third N site, N(3) is bonded in a 2-coordinate geometry to one K(3), two equivalent K(1), and two equivalent W(1) atoms. In the fourth N site, N(4) is bonded in a distorted bent 150 degrees geometry to one K(1), one K(3), and two equivalent W(2) atoms. In the fifth N site, N(5) is bonded in a 5-coordinate geometry to one K(3), two equivalent K(2), one W(1), and one W(2) atom.