Lu2Cr2C3 crystallizes in the monoclinic C2/m space group. Lu(1) is bonded in a 5-coordinate geometry to two equivalent C(2) and three equivalent C(1) atoms. Cr(1) is bonded to one C(2) and three equivalent C(1) atoms to form a mixture of edge and corner-sharing CrC4 trigonal pyramids. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 6-coordinate geometry to three equivalent Lu(1) and three equivalent Cr(1) atoms. In the second C site, C(2) is bonded to four equivalent Lu(1) and two equivalent Cr(1) atoms to form edge-sharing CLu4Cr2 octahedra.
Lu2Cr2C3 crystallizes in the monoclinic C2/m space group. Lu(1) is bonded in a 5-coordinate geometry to two equivalent C(2) and three equivalent C(1) atoms. Both Lu(1)-C(2) bond lengths are 2.41 Å. There is one shorter (2.37 Å) and two longer (2.57 Å) Lu(1)-C(1) bond lengths. Cr(1) is bonded to one C(2) and three equivalent C(1) atoms to form a mixture of edge and corner-sharing CrC4 trigonal pyramids. The Cr(1)-C(2) bond length is 1.89 Å. There are two shorter (1.95 Å) and one longer (2.00 Å) Cr(1)-C(1) bond length. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 6-coordinate geometry to three equivalent Lu(1) and three equivalent Cr(1) atoms. In the second C site, C(2) is bonded to four equivalent Lu(1) and two equivalent Cr(1) atoms to form edge-sharing CLu4Cr2 octahedra.