Ce2CrN3 crystallizes in the orthorhombic Immm space group. Ce(1) is bonded to two equivalent N(2) and five equivalent N(1) atoms to form a mixture of distorted corner, edge, and face-sharing CeN7 pentagonal bipyramids. Cr(1) is bonded in a square co-planar geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(2) is bonded to four equivalent Ce(1) and two equivalent Cr(1) atoms to form NCe4Cr2 octahedra that share corners with two equivalent N(2)Ce4Cr2 octahedra, corners with twelve equivalent N(1)Ce5Cr octahedra, edges with two equivalent N(2)Ce4Cr2 octahedra, and faces with four equivalent N(1)Ce5Cr octahedra. The corner-sharing octahedral tilt angles range from 0-58°. In the second N site, N(1) is bonded to five equivalent Ce(1) and one Cr(1) atom to form NCe5Cr octahedra that share corners with five equivalent N(1)Ce5Cr octahedra, corners with six equivalent N(2)Ce4Cr2 octahedra, edges with eight equivalent N(1)Ce5Cr octahedra, and faces with two equivalent N(2)Ce4Cr2 octahedra. The corner-sharing octahedral tilt angles range from 0-58°.
Ce2CrN3 crystallizes in the orthorhombic Immm space group. Ce(1) is bonded to two equivalent N(2) and five equivalent N(1) atoms to form a mixture of distorted corner, edge, and face-sharing CeN7 pentagonal bipyramids. Both Ce(1)-N(2) bond lengths are 2.52 Å. There is one shorter (2.35 Å) and four longer (2.59 Å) Ce(1)-N(1) bond lengths. Cr(1) is bonded in a square co-planar geometry to two equivalent N(1) and two equivalent N(2) atoms. Both Cr(1)-N(1) bond lengths are 2.07 Å. Both Cr(1)-N(2) bond lengths are 1.91 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded to four equivalent Ce(1) and two equivalent Cr(1) atoms to form NCe4Cr2 octahedra that share corners with two equivalent N(2)Ce4Cr2 octahedra, corners with twelve equivalent N(1)Ce5Cr octahedra, edges with two equivalent N(2)Ce4Cr2 octahedra, and faces with four equivalent N(1)Ce5Cr octahedra. The corner-sharing octahedral tilt angles range from 0-58°. In the second N site, N(1) is bonded to five equivalent Ce(1) and one Cr(1) atom to form NCe5Cr octahedra that share corners with five equivalent N(1)Ce5Cr octahedra, corners with six equivalent N(2)Ce4Cr2 octahedra, edges with eight equivalent N(1)Ce5Cr octahedra, and faces with two equivalent N(2)Ce4Cr2 octahedra. The corner-sharing octahedral tilt angles range from 0-58°.