Lu2Fe2Si2C crystallizes in the monoclinic C2/m space group. Lu(1) is bonded in a distorted water-like geometry to five equivalent Si(1) and two equivalent C(1) atoms. Fe(1) is bonded in a distorted single-bond geometry to three equivalent Si(1) and one C(1) atom. Si(1) is bonded in a 9-coordinate geometry to five equivalent Lu(1), three equivalent Fe(1), and one Si(1) atom. C(1) is bonded to four equivalent Lu(1) and two equivalent Fe(1) atoms to form distorted edge-sharing CLu4Fe2 octahedra.
Lu2Fe2Si2C crystallizes in the monoclinic C2/m space group. Lu(1) is bonded in a distorted water-like geometry to five equivalent Si(1) and two equivalent C(1) atoms. There is one shorter (2.94 Å) and four longer (2.95 Å) Lu(1)-Si(1) bond lengths. Both Lu(1)-C(1) bond lengths are 2.50 Å. Fe(1) is bonded in a distorted single-bond geometry to three equivalent Si(1) and one C(1) atom. There are two shorter (2.25 Å) and one longer (2.28 Å) Fe(1)-Si(1) bond length. The Fe(1)-C(1) bond length is 1.76 Å. Si(1) is bonded in a 9-coordinate geometry to five equivalent Lu(1), three equivalent Fe(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.62 Å. C(1) is bonded to four equivalent Lu(1) and two equivalent Fe(1) atoms to form distorted edge-sharing CLu4Fe2 octahedra.