Gd3(MnC3)2 crystallizes in the hexagonal P6_3/m space group. Gd(1) is bonded in a 8-coordinate geometry to four equivalent C(1) and four equivalent C(2) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to six equivalent C(1) atoms to form face-sharing MnC6 octahedra. In the second Mn site, Mn(2) is bonded in a trigonal planar geometry to three equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 7-coordinate geometry to four equivalent Gd(1), two equivalent Mn(1), and one C(2) atom. In the second C site, C(2) is bonded in a 6-coordinate geometry to four equivalent Gd(1), one Mn(2), and one C(1) atom.
Gd3(MnC3)2 crystallizes in the hexagonal P6_3/m space group. Gd(1) is bonded in a 8-coordinate geometry to four equivalent C(1) and four equivalent C(2) atoms. There are a spread of Gd(1)-C(1) bond distances ranging from 2.47-2.77 Å. There are a spread of Gd(1)-C(2) bond distances ranging from 2.53-2.84 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to six equivalent C(1) atoms to form face-sharing MnC6 octahedra. All Mn(1)-C(1) bond lengths are 2.15 Å. In the second Mn site, Mn(2) is bonded in a trigonal planar geometry to three equivalent C(2) atoms. All Mn(2)-C(2) bond lengths are 1.81 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 7-coordinate geometry to four equivalent Gd(1), two equivalent Mn(1), and one C(2) atom. The C(1)-C(2) bond length is 1.37 Å. In the second C site, C(2) is bonded in a 6-coordinate geometry to four equivalent Gd(1), one Mn(2), and one C(1) atom.