Dy(Ni2B)6 crystallizes in the trigonal R-3m space group. Dy(1) is bonded in a 24-coordinate geometry to six equivalent Ni(2), twelve equivalent Ni(1), and six equivalent B(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(2) is bonded in a distorted T-shaped geometry to one Dy(1) and three equivalent B(1) atoms. In the second Ni site, Ni(1) is bonded in a 4-coordinate geometry to two equivalent Dy(1) and four equivalent B(1) atoms. B(1) is bonded in a 7-coordinate geometry to one Dy(1), three equivalent Ni(2), and four equivalent Ni(1) atoms.
Dy(Ni2B)6 crystallizes in the trigonal R-3m space group. Dy(1) is bonded in a 24-coordinate geometry to six equivalent Ni(2), twelve equivalent Ni(1), and six equivalent B(1) atoms. All Dy(1)-Ni(2) bond lengths are 3.06 Å. All Dy(1)-Ni(1) bond lengths are 3.25 Å. All Dy(1)-B(1) bond lengths are 3.12 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(2) is bonded in a distorted T-shaped geometry to one Dy(1) and three equivalent B(1) atoms. There are two shorter (2.07 Å) and one longer (2.11 Å) Ni(2)-B(1) bond length. In the second Ni site, Ni(1) is bonded in a 4-coordinate geometry to two equivalent Dy(1) and four equivalent B(1) atoms. There are two shorter (2.03 Å) and two longer (2.08 Å) Ni(1)-B(1) bond lengths. B(1) is bonded in a 7-coordinate geometry to one Dy(1), three equivalent Ni(2), and four equivalent Ni(1) atoms.