CrN2 is High (Orthorhombic) Tridymite-like structured and crystallizes in the orthorhombic Imma space group. There are five inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one N(1), one N(5), and two equivalent N(4) atoms to form corner-sharing CrN4 tetrahedra. In the second Cr site, Cr(2) is bonded to two equivalent N(3) and two equivalent N(7) atoms to form corner-sharing CrN4 tetrahedra. In the third Cr site, Cr(3) is bonded to one N(6), one N(7), and two equivalent N(8) atoms to form corner-sharing CrN4 tetrahedra. In the fourth Cr site, Cr(4) is bonded to two equivalent N(2) and two equivalent N(3) atoms to form corner-sharing CrN4 tetrahedra. In the fifth Cr site, Cr(5) is bonded to one N(2), one N(5), and two equivalent N(8) atoms to form corner-sharing CrN4 tetrahedra. There are eight 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 linear geometry to one Cr(4) and one Cr(5) atom. In the third N site, N(3) is bonded in a linear geometry to one Cr(2) and one Cr(4) atom. In the fourth N site, N(4) is bonded in a bent 150 degrees 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(1) and one Cr(5) atom. In the sixth N site, N(6) is bonded in a linear geometry to two equivalent Cr(3) atoms. In the seventh N site, N(7) is bonded in a bent 150 degrees geometry to one Cr(2) and one Cr(3) atom. In the eighth N site, N(8) is bonded in a linear geometry to one Cr(3) and one Cr(5) atom.
CrN2 is High (Orthorhombic) Tridymite-like structured and crystallizes in the orthorhombic Imma space group. There are five inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one N(1), one N(5), and two equivalent N(4) atoms to form corner-sharing CrN4 tetrahedra. The Cr(1)-N(1) bond length is 1.73 Å. The Cr(1)-N(5) bond length is 1.72 Å. Both Cr(1)-N(4) bond lengths are 1.73 Å. In the second Cr site, Cr(2) is bonded to two equivalent N(3) and two equivalent N(7) atoms to form corner-sharing CrN4 tetrahedra. Both Cr(2)-N(3) bond lengths are 1.74 Å. Both Cr(2)-N(7) bond lengths are 1.72 Å. In the third Cr site, Cr(3) is bonded to one N(6), one N(7), and two equivalent N(8) atoms to form corner-sharing CrN4 tetrahedra. The Cr(3)-N(6) bond length is 1.73 Å. The Cr(3)-N(7) bond length is 1.74 Å. Both Cr(3)-N(8) bond lengths are 1.73 Å. In the fourth Cr site, Cr(4) is bonded to two equivalent N(2) and two equivalent N(3) atoms to form corner-sharing CrN4 tetrahedra. Both Cr(4)-N(2) bond lengths are 1.74 Å. Both Cr(4)-N(3) bond lengths are 1.71 Å. In the fifth Cr site, Cr(5) is bonded to one N(2), one N(5), and two equivalent N(8) atoms to form corner-sharing CrN4 tetrahedra. The Cr(5)-N(2) bond length is 1.70 Å. The Cr(5)-N(5) bond length is 1.74 Å. Both Cr(5)-N(8) bond lengths are 1.73 Å. There are eight 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 linear geometry to one Cr(4) and one Cr(5) atom. In the third N site, N(3) is bonded in a linear geometry to one Cr(2) and one Cr(4) atom. In the fourth N site, N(4) is bonded in a bent 150 degrees 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(1) and one Cr(5) atom. In the sixth N site, N(6) is bonded in a linear geometry to two equivalent Cr(3) atoms. In the seventh N site, N(7) is bonded in a bent 150 degrees geometry to one Cr(2) and one Cr(3) atom. In the eighth N site, N(8) is bonded in a linear geometry to one Cr(3) and one Cr(5) atom.