DySmC4 crystallizes in the monoclinic C2/m space group. Dy(1) is bonded in a distorted q4 geometry to four equivalent C(1) and six equivalent C(2) atoms. Sm(1) is bonded in a distorted q4 geometry to four equivalent C(2) and six equivalent C(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 6-coordinate geometry to two equivalent Dy(1), three equivalent Sm(1), and one C(2) atom. In the second C site, C(2) is bonded in a 6-coordinate geometry to three equivalent Dy(1), two equivalent Sm(1), and one C(1) atom.
DySmC4 crystallizes in the monoclinic C2/m space group. Dy(1) is bonded in a distorted q4 geometry to four equivalent C(1) and six equivalent C(2) atoms. All Dy(1)-C(1) bond lengths are 2.67 Å. There are two shorter (2.46 Å) and four longer (2.70 Å) Dy(1)-C(2) bond lengths. Sm(1) is bonded in a distorted q4 geometry to four equivalent C(2) and six equivalent C(1) atoms. All Sm(1)-C(2) bond lengths are 2.74 Å. There are two shorter (2.54 Å) and four longer (2.74 Å) Sm(1)-C(1) bond lengths. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 6-coordinate geometry to two equivalent Dy(1), three equivalent Sm(1), and one C(2) atom. The C(1)-C(2) bond length is 1.30 Å. In the second C site, C(2) is bonded in a 6-coordinate geometry to three equivalent Dy(1), two equivalent Sm(1), and one C(1) atom.