KC2N3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 7-coordinate geometry to two equivalent N(2), two equivalent N(3), and three equivalent N(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one N(1) and one N(3) atom. In the second C site, C(2) is bonded in a linear geometry to one N(2) and one N(3) atom. There are three inequivalent N sites. In the first N site, N(1) is bonded to three equivalent K(1) and one C(1) atom to form a mixture of distorted corner and edge-sharing NK3C tetrahedra. In the second N site, N(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one C(2) atom. In the third N site, N(3) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1), one C(1), and one C(2) atom.
KC2N3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 7-coordinate geometry to two equivalent N(2), two equivalent N(3), and three equivalent N(1) atoms. Both K(1)-N(2) bond lengths are 2.84 Å. Both K(1)-N(3) bond lengths are 3.23 Å. There are two shorter (2.86 Å) and one longer (2.89 Å) K(1)-N(1) bond length. There are two inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one N(1) and one N(3) atom. The C(1)-N(1) bond length is 1.19 Å. The C(1)-N(3) bond length is 1.30 Å. In the second C site, C(2) is bonded in a linear geometry to one N(2) and one N(3) atom. The C(2)-N(2) bond length is 1.18 Å. The C(2)-N(3) bond length is 1.30 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded to three equivalent K(1) and one C(1) atom to form a mixture of distorted corner and edge-sharing NK3C tetrahedra. In the second N site, N(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one C(2) atom. In the third N site, N(3) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1), one C(1), and one C(2) atom.