CrN2 is Low Tridymite-like structured and crystallizes in the monoclinic C2/m space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one N(1), one N(2), one N(4), and one N(7) atom to form corner-sharing CrN4 tetrahedra. In the second Cr site, Cr(2) is bonded to one N(1), one N(3), one N(6), and one N(9) atom to form corner-sharing CrN4 tetrahedra. In the third Cr site, Cr(3) is bonded to one N(10), one N(5), one N(6), and one N(8) atom to form corner-sharing CrN4 tetrahedra. In the fourth Cr site, Cr(4) is bonded to one N(2), one N(3), one N(5), and one N(8) atom to form corner-sharing CrN4 tetrahedra. There are ten inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the second N site, N(2) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(4) atom. In the third N site, N(3) is bonded in a bent 150 degrees geometry to one Cr(2) and one Cr(4) atom. In the fourth N site, N(4) is bonded in a linear geometry to two equivalent Cr(1) atoms. In the fifth N site, N(5) is bonded in a bent 150 degrees geometry to one Cr(3) and one Cr(4) atom. In the sixth N site, N(6) is bonded in a bent 150 degrees geometry to one Cr(2) and one Cr(3) atom. In the seventh N site, N(7) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the eighth N site, N(8) is bonded in a bent 150 degrees geometry to one Cr(3) and one Cr(4) atom. In the ninth N site, N(9) is bonded in a bent 150 degrees geometry to two equivalent Cr(2) atoms. In the tenth N site, N(10) is bonded in a bent 150 degrees geometry to two equivalent Cr(3) atoms.
CrN2 is Low Tridymite-like structured and crystallizes in the monoclinic C2/m space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one N(1), one N(2), one N(4), and one N(7) atom to form corner-sharing CrN4 tetrahedra. The Cr(1)-N(1) bond length is 1.73 Å. The Cr(1)-N(2) bond length is 1.73 Å. The Cr(1)-N(4) bond length is 1.72 Å. The Cr(1)-N(7) bond length is 1.73 Å. In the second Cr site, Cr(2) is bonded to one N(1), one N(3), one N(6), and one N(9) atom to form corner-sharing CrN4 tetrahedra. The Cr(2)-N(1) bond length is 1.72 Å. The Cr(2)-N(3) bond length is 1.74 Å. The Cr(2)-N(6) bond length is 1.72 Å. The Cr(2)-N(9) bond length is 1.72 Å. In the third Cr site, Cr(3) is bonded to one N(10), one N(5), one N(6), and one N(8) atom to form corner-sharing CrN4 tetrahedra. The Cr(3)-N(10) bond length is 1.73 Å. The Cr(3)-N(5) bond length is 1.73 Å. The Cr(3)-N(6) bond length is 1.72 Å. The Cr(3)-N(8) bond length is 1.73 Å. In the fourth Cr site, Cr(4) is bonded to one N(2), one N(3), one N(5), and one N(8) atom to form corner-sharing CrN4 tetrahedra. The Cr(4)-N(2) bond length is 1.73 Å. The Cr(4)-N(3) bond length is 1.72 Å. The Cr(4)-N(5) bond length is 1.73 Å. The Cr(4)-N(8) bond length is 1.73 Å. There are ten inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the second N site, N(2) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(4) atom. In the third N site, N(3) is bonded in a bent 150 degrees geometry to one Cr(2) and one Cr(4) atom. In the fourth N site, N(4) is bonded in a linear geometry to two equivalent Cr(1) atoms. In the fifth N site, N(5) is bonded in a bent 150 degrees geometry to one Cr(3) and one Cr(4) atom. In the sixth N site, N(6) is bonded in a bent 150 degrees geometry to one Cr(2) and one Cr(3) atom. In the seventh N site, N(7) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the eighth N site, N(8) is bonded in a bent 150 degrees geometry to one Cr(3) and one Cr(4) atom. In the ninth N site, N(9) is bonded in a bent 150 degrees geometry to two equivalent Cr(2) atoms. In the tenth N site, N(10) is bonded in a bent 150 degrees geometry to two equivalent Cr(3) atoms.