KCrN2 crystallizes in the orthorhombic Pbca space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to two equivalent N(1), two equivalent N(4), three equivalent N(2), and three equivalent N(3) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one N(1), two equivalent N(2), two equivalent N(3), and two equivalent N(4) atoms. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one N(2), one N(3), and two equivalent N(4) atoms to form corner-sharing CrN4 tetrahedra. In the second Cr site, Cr(2) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form corner-sharing CrN4 tetrahedra. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted bent 150 degrees geometry to one K(2), two equivalent K(1), and two equivalent Cr(2) atoms. In the second N site, N(2) is bonded in a distorted linear geometry to two equivalent K(2), three equivalent K(1), one Cr(1), and one Cr(2) atom. In the third N site, N(3) is bonded in a distorted linear geometry to two equivalent K(2), three equivalent K(1), one Cr(1), and one Cr(2) atom. In the fourth N site, N(4) is bonded in a linear geometry to two equivalent K(1), two equivalent K(2), and two equivalent Cr(1) atoms.
KCrN2 crystallizes in the orthorhombic Pbca space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to two equivalent N(1), two equivalent N(4), three equivalent N(2), and three equivalent N(3) atoms. There is one shorter (3.03 Å) and one longer (3.04 Å) K(1)-N(1) bond length. There is one shorter (3.17 Å) and one longer (3.25 Å) K(1)-N(4) bond length. There are a spread of K(1)-N(2) bond distances ranging from 3.24-3.33 Å. There are a spread of K(1)-N(3) bond distances ranging from 3.26-3.38 Å. In the second K site, K(2) is bonded in a 7-coordinate geometry to one N(1), two equivalent N(2), two equivalent N(3), and two equivalent N(4) atoms. The K(2)-N(1) bond length is 2.91 Å. There is one shorter (2.97 Å) and one longer (3.34 Å) K(2)-N(2) bond length. There is one shorter (2.95 Å) and one longer (3.31 Å) K(2)-N(3) bond length. There is one shorter (3.11 Å) and one longer (3.13 Å) K(2)-N(4) bond length. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one N(2), one N(3), and two equivalent N(4) atoms to form corner-sharing CrN4 tetrahedra. The Cr(1)-N(2) bond length is 1.76 Å. The Cr(1)-N(3) bond length is 1.76 Å. Both Cr(1)-N(4) bond lengths are 1.76 Å. In the second Cr site, Cr(2) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form corner-sharing CrN4 tetrahedra. The Cr(2)-N(2) bond length is 1.76 Å. The Cr(2)-N(3) bond length is 1.76 Å. There is one shorter (1.77 Å) and one longer (1.79 Å) Cr(2)-N(1) bond length. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted bent 150 degrees geometry to one K(2), two equivalent K(1), and two equivalent Cr(2) atoms. In the second N site, N(2) is bonded in a distorted linear geometry to two equivalent K(2), three equivalent K(1), one Cr(1), and one Cr(2) atom. In the third N site, N(3) is bonded in a distorted linear geometry to two equivalent K(2), three equivalent K(1), one Cr(1), and one Cr(2) atom. In the fourth N site, N(4) is bonded in a linear geometry to two equivalent K(1), two equivalent K(2), and two equivalent Cr(1) atoms.