Cr3(GaN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form a mixture of corner and edge-sharing CrN4 trigonal pyramids. In the second Cr site, Cr(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form a mixture of corner and edge-sharing CrN4 tetrahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a bent 120 degrees geometry to two equivalent N(1) atoms. In the second Ga site, Ga(2) is bonded in a water-like geometry to two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted see-saw-like geometry to one Cr(2), two equivalent Cr(1), and one Ga(1) atom. In the second N site, N(2) is bonded in a distorted see-saw-like geometry to one Cr(2), two equivalent Cr(1), and one Ga(2) atom.
Cr3(GaN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form a mixture of corner and edge-sharing CrN4 trigonal pyramids. There is one shorter (1.88 Å) and one longer (1.96 Å) Cr(1)-N(1) bond length. There is one shorter (1.91 Å) and one longer (1.94 Å) Cr(1)-N(2) bond length. In the second Cr site, Cr(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form a mixture of corner and edge-sharing CrN4 tetrahedra. Both Cr(2)-N(1) bond lengths are 1.87 Å. Both Cr(2)-N(2) bond lengths are 1.82 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a bent 120 degrees geometry to two equivalent N(1) atoms. Both Ga(1)-N(1) bond lengths are 2.06 Å. In the second Ga site, Ga(2) is bonded in a water-like geometry to two equivalent N(2) atoms. Both Ga(2)-N(2) bond lengths are 2.13 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted see-saw-like geometry to one Cr(2), two equivalent Cr(1), and one Ga(1) atom. In the second N site, N(2) is bonded in a distorted see-saw-like geometry to one Cr(2), two equivalent Cr(1), and one Ga(2) atom.