DyGdC4 crystallizes in the orthorhombic Cmmm space group. Dy(1) is bonded in a distorted q4 geometry to four equivalent C(1) and six equivalent C(2) atoms. Gd(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 Gd(1), and one C(1) atom. In the second C site, C(2) is bonded in a 6-coordinate geometry to three equivalent Dy(1), two equivalent Gd(1), and one C(2) atom.
DyGdC4 crystallizes in the orthorhombic Cmmm 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 2.70 Å. There are two shorter (2.47 Å) and four longer (2.70 Å) Dy(1)-C(2) bond lengths. Gd(1) is bonded in a distorted q4 geometry to four equivalent C(2) and six equivalent C(1) atoms. All Gd(1)-C(2) bond lengths are 2.70 Å. There are two shorter (2.47 Å) and four longer (2.70 Å) Gd(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 Gd(1), and one C(1) atom. The C(1)-C(1) 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 Gd(1), and one C(2) atom. The C(2)-C(2) bond length is 1.30 Å.