K2ZnN4 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one N(1), one N(2), two equivalent N(3), and two equivalent N(4) atoms to form distorted KN6 pentagonal pyramids that share corners with two equivalent Zn(1)N4 tetrahedra, edges with two equivalent K(1)N6 pentagonal pyramids, and edges with two equivalent Zn(1)N4 tetrahedra. In the second K site, K(2) is bonded in a 6-coordinate geometry to one N(3), one N(4), two equivalent N(1), and two equivalent N(2) atoms. Zn(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form ZnN4 tetrahedra that share corners with two equivalent K(1)N6 pentagonal pyramids and edges with two equivalent K(1)N6 pentagonal pyramids. There are four inequivalent N sites. In the first N site, N(1) is bonded in a rectangular see-saw-like geometry to one K(1), two equivalent K(2), and one Zn(1) atom. In the second N site, N(2) is bonded in a 4-coordinate geometry to one K(1), two equivalent K(2), and one Zn(1) atom. In the third N site, N(3) is bonded in a distorted see-saw-like geometry to one K(2), two equivalent K(1), and one Zn(1) atom. In the fourth N site, N(4) is bonded in a distorted rectangular see-saw-like geometry to one K(2), two equivalent K(1), and one Zn(1) atom.
K2ZnN4 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one N(1), one N(2), two equivalent N(3), and two equivalent N(4) atoms to form distorted KN6 pentagonal pyramids that share corners with two equivalent Zn(1)N4 tetrahedra, edges with two equivalent K(1)N6 pentagonal pyramids, and edges with two equivalent Zn(1)N4 tetrahedra. The K(1)-N(1) bond length is 2.76 Å. The K(1)-N(2) bond length is 2.80 Å. There is one shorter (2.92 Å) and one longer (3.06 Å) K(1)-N(3) bond length. There is one shorter (2.75 Å) and one longer (2.92 Å) K(1)-N(4) bond length. In the second K site, K(2) is bonded in a 6-coordinate geometry to one N(3), one N(4), two equivalent N(1), and two equivalent N(2) atoms. The K(2)-N(3) bond length is 3.12 Å. The K(2)-N(4) bond length is 3.00 Å. There is one shorter (2.86 Å) and one longer (2.94 Å) K(2)-N(1) bond length. There is one shorter (2.83 Å) and one longer (3.13 Å) K(2)-N(2) bond length. Zn(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form ZnN4 tetrahedra that share corners with two equivalent K(1)N6 pentagonal pyramids and edges with two equivalent K(1)N6 pentagonal pyramids. The Zn(1)-N(1) bond length is 1.94 Å. The Zn(1)-N(2) bond length is 1.92 Å. The Zn(1)-N(3) bond length is 1.97 Å. The Zn(1)-N(4) bond length is 1.93 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 K(1), two equivalent K(2), and one Zn(1) atom. In the second N site, N(2) is bonded in a 4-coordinate geometry to one K(1), two equivalent K(2), and one Zn(1) atom. In the third N site, N(3) is bonded in a distorted see-saw-like geometry to one K(2), two equivalent K(1), and one Zn(1) atom. In the fourth N site, N(4) is bonded in a distorted rectangular see-saw-like geometry to one K(2), two equivalent K(1), and one Zn(1) atom.