Ho(CoGa)6 crystallizes in the orthorhombic Immm space group. Ho(1) is bonded in a 20-coordinate geometry to four equivalent Co(1), eight equivalent Co(2), two equivalent Ga(1), two equivalent Ga(2), and four equivalent Ga(3) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Ho(1), four equivalent Co(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form a mixture of distorted edge, face, and corner-sharing CoHo2Ga6Co4 cuboctahedra. In the second Co site, Co(2) is bonded to two equivalent Ho(1), two equivalent Co(1), two equivalent Co(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form a mixture of distorted edge, face, and corner-sharing CoHo2Ga6Co4 cuboctahedra. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Ho(1), two equivalent Co(1), four equivalent Co(2), one Ga(1), and two equivalent Ga(3) atoms. In the second Ga site, Ga(2) is bonded in a 8-coordinate geometry to one Ho(1), two equivalent Co(1), four equivalent Co(2), and one Ga(2) atom. In the third Ga site, Ga(3) is bonded in a 8-coordinate geometry to two equivalent Ho(1), two equivalent Co(1), four equivalent Co(2), and two equivalent Ga(1) atoms.
Ho(CoGa)6 crystallizes in the orthorhombic Immm space group. Ho(1) is bonded in a 20-coordinate geometry to four equivalent Co(1), eight equivalent Co(2), two equivalent Ga(1), two equivalent Ga(2), and four equivalent Ga(3) atoms. All Ho(1)-Co(1) bond lengths are 3.18 Å. All Ho(1)-Co(2) bond lengths are 3.23 Å. Both Ho(1)-Ga(1) bond lengths are 2.98 Å. Both Ho(1)-Ga(2) bond lengths are 2.80 Å. All Ho(1)-Ga(3) bond lengths are 2.98 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Ho(1), four equivalent Co(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form a mixture of distorted edge, face, and corner-sharing CoHo2Ga6Co4 cuboctahedra. All Co(1)-Co(2) bond lengths are 2.50 Å. Both Co(1)-Ga(1) bond lengths are 2.52 Å. Both Co(1)-Ga(2) bond lengths are 2.65 Å. Both Co(1)-Ga(3) bond lengths are 2.53 Å. In the second Co site, Co(2) is bonded to two equivalent Ho(1), two equivalent Co(1), two equivalent Co(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form a mixture of distorted edge, face, and corner-sharing CoHo2Ga6Co4 cuboctahedra. Both Co(2)-Co(2) bond lengths are 2.51 Å. Both Co(2)-Ga(1) bond lengths are 2.54 Å. Both Co(2)-Ga(2) bond lengths are 2.61 Å. Both Co(2)-Ga(3) bond lengths are 2.46 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Ho(1), two equivalent Co(1), four equivalent Co(2), one Ga(1), and two equivalent Ga(3) atoms. The Ga(1)-Ga(1) bond length is 2.67 Å. Both Ga(1)-Ga(3) bond lengths are 2.86 Å. In the second Ga site, Ga(2) is bonded in a 8-coordinate geometry to one Ho(1), two equivalent Co(1), four equivalent Co(2), and one Ga(2) atom. The Ga(2)-Ga(2) bond length is 2.58 Å. In the third Ga site, Ga(3) is bonded in a 8-coordinate geometry to two equivalent Ho(1), two equivalent Co(1), four equivalent Co(2), and two equivalent Ga(1) atoms.