Dy5B2C5 crystallizes in the tetragonal P4/ncc space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent C(1) and four equivalent C(2) atoms to form corner-sharing DyC6 octahedra. The corner-sharing octahedra are not tilted. In the second Dy site, Dy(2) is bonded in a 7-coordinate geometry to two equivalent B(1), one C(1), and four equivalent C(2) atoms. B(1) is bonded in a linear geometry to four equivalent Dy(2) and two equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(2) is bonded in a 6-coordinate geometry to one Dy(1), four equivalent Dy(2), and one B(1) atom. In the second C site, C(1) is bonded to two equivalent Dy(1) and four equivalent Dy(2) atoms to form corner-sharing CDy6 octahedra. The corner-sharing octahedra are not tilted.
Dy5B2C5 crystallizes in the tetragonal P4/ncc space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent C(1) and four equivalent C(2) atoms to form corner-sharing DyC6 octahedra. The corner-sharing octahedra are not tilted. There is one shorter (2.56 Å) and one longer (2.80 Å) Dy(1)-C(1) bond length. All Dy(1)-C(2) bond lengths are 2.60 Å. In the second Dy site, Dy(2) is bonded in a 7-coordinate geometry to two equivalent B(1), one C(1), and four equivalent C(2) atoms. There is one shorter (2.63 Å) and one longer (2.81 Å) Dy(2)-B(1) bond length. The Dy(2)-C(1) bond length is 2.45 Å. There are a spread of Dy(2)-C(2) bond distances ranging from 2.41-2.72 Å. B(1) is bonded in a linear geometry to four equivalent Dy(2) and two equivalent C(2) atoms. Both B(1)-C(2) bond lengths are 1.46 Å. There are two inequivalent C sites. In the first C site, C(2) is bonded in a 6-coordinate geometry to one Dy(1), four equivalent Dy(2), and one B(1) atom. In the second C site, C(1) is bonded to two equivalent Dy(1) and four equivalent Dy(2) atoms to form corner-sharing CDy6 octahedra. The corner-sharing octahedra are not tilted.