Y2CrN3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 7-coordinate geometry to one N(1), one N(4), two equivalent N(3), and three equivalent N(2) atoms. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one N(1), one N(4), two equivalent N(2), and three equivalent N(3) atoms. Cr(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing CrN4 tetrahedra. There are four inequivalent N sites. In the first N site, N(4) is bonded in a distorted linear geometry to two equivalent Y(1), two equivalent Y(2), and two equivalent Cr(1) atoms. In the second N site, N(1) is bonded to two equivalent Y(1), two equivalent Y(2), and two equivalent Cr(1) atoms to form a mixture of distorted corner and face-sharing NY4Cr2 octahedra. The corner-sharing octahedral tilt angles range from 40-61°. In the third N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Y(2), three equivalent Y(1), and one Cr(1) atom. In the fourth N site, N(3) is bonded to two equivalent Y(1), three equivalent Y(2), and one Cr(1) atom to form distorted NY5Cr octahedra that share corners with two equivalent N(3)Y5Cr octahedra, corners with three equivalent N(1)Y4Cr2 octahedra, edges with three equivalent N(3)Y5Cr octahedra, and  a faceface with one N(1)Y4Cr2 octahedra. The corner-sharing octahedral tilt angles range from 19-61°.
Y2CrN3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 7-coordinate geometry to one N(1), one N(4), two equivalent N(3), and three equivalent N(2) atoms. The Y(1)-N(1) bond length is 2.41 Å. The Y(1)-N(4) bond length is 2.65 Å. There is one shorter (2.39 Å) and one longer (2.47 Å) Y(1)-N(3) bond length. There are a spread of Y(1)-N(2) bond distances ranging from 2.42-2.79 Å. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one N(1), one N(4), two equivalent N(2), and three equivalent N(3) atoms. The Y(2)-N(1) bond length is 2.54 Å. The Y(2)-N(4) bond length is 2.58 Å. There is one shorter (2.36 Å) and one longer (2.42 Å) Y(2)-N(2) bond length. There are a spread of Y(2)-N(3) bond distances ranging from 2.49-2.70 Å. Cr(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing CrN4 tetrahedra. The Cr(1)-N(1) bond length is 1.93 Å. The Cr(1)-N(2) bond length is 1.91 Å. The Cr(1)-N(3) bond length is 1.88 Å. The Cr(1)-N(4) bond length is 1.79 Å. There are four inequivalent N sites. In the first N site, N(4) is bonded in a distorted linear geometry to two equivalent Y(1), two equivalent Y(2), and two equivalent Cr(1) atoms. In the second N site, N(1) is bonded to two equivalent Y(1), two equivalent Y(2), and two equivalent Cr(1) atoms to form a mixture of distorted corner and face-sharing NY4Cr2 octahedra. The corner-sharing octahedral tilt angles range from 40-61°. In the third N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Y(2), three equivalent Y(1), and one Cr(1) atom. In the fourth N site, N(3) is bonded to two equivalent Y(1), three equivalent Y(2), and one Cr(1) atom to form distorted NY5Cr octahedra that share corners with two equivalent N(3)Y5Cr octahedra, corners with three equivalent N(1)Y4Cr2 octahedra, edges with three equivalent N(3)Y5Cr octahedra, and  a faceface with one N(1)Y4Cr2 octahedra. The corner-sharing octahedral tilt angles range from 19-61°.