CrN2 is Keatite structured and crystallizes in the tetragonal P4_32_12 space group. 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(1) atoms to form corner-sharing CrN4 tetrahedra. In the second Cr site, Cr(2) is bonded to two equivalent N(2) and two equivalent N(3) atoms to form corner-sharing CrN4 tetrahedra. There are three inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the second N site, N(2) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the third N site, N(3) is bonded in a linear geometry to one Cr(1) and one Cr(2) atom.
CrN2 is Keatite structured and crystallizes in the tetragonal P4_32_12 space group. 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(1) atoms to form corner-sharing CrN4 tetrahedra. The Cr(1)-N(2) bond length is 1.74 Å. The Cr(1)-N(3) bond length is 1.72 Å. There is one shorter (1.71 Å) and one longer (1.76 Å) Cr(1)-N(1) bond length. In the second Cr site, Cr(2) is bonded to two equivalent N(2) and two equivalent N(3) atoms to form corner-sharing CrN4 tetrahedra. Both Cr(2)-N(2) bond lengths are 1.72 Å. Both Cr(2)-N(3) bond lengths are 1.73 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the second N site, N(2) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the third N site, N(3) is bonded in a linear geometry to one Cr(1) and one Cr(2) atom.