Ho(MnGa)6 crystallizes in the orthorhombic Fmmm space group. Ho(1) is bonded in a 20-coordinate geometry to four equivalent Mn(1), four equivalent Mn(2), four equivalent Ga(2), and eight equivalent Ga(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 12-coordinate geometry to two equivalent Ho(1), two equivalent Mn(1), four equivalent Mn(2), and four equivalent Ga(1) atoms. In the second Mn site, Mn(2) is bonded in a 14-coordinate geometry to one Ho(1), two equivalent Mn(1), five equivalent Mn(2), two equivalent Ga(2), and four equivalent Ga(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(2) is bonded to two equivalent Ho(1), four equivalent Mn(2), two equivalent Ga(2), and four equivalent Ga(1) atoms to form a mixture of distorted face and corner-sharing GaHo2Mn4Ga6 cuboctahedra. In the second Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), two equivalent Mn(1), four equivalent Mn(2), and two equivalent Ga(2) atoms.
Ho(MnGa)6 crystallizes in the orthorhombic Fmmm space group. Ho(1) is bonded in a 20-coordinate geometry to four equivalent Mn(1), four equivalent Mn(2), four equivalent Ga(2), and eight equivalent Ga(1) atoms. All Ho(1)-Mn(1) bond lengths are 3.36 Å. All Ho(1)-Mn(2) bond lengths are 3.17 Å. All Ho(1)-Ga(2) bond lengths are 3.41 Å. All Ho(1)-Ga(1) bond lengths are 3.23 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 12-coordinate geometry to two equivalent Ho(1), two equivalent Mn(1), four equivalent Mn(2), and four equivalent Ga(1) atoms. Both Mn(1)-Mn(1) bond lengths are 2.41 Å. All Mn(1)-Mn(2) bond lengths are 2.69 Å. All Mn(1)-Ga(1) bond lengths are 2.47 Å. In the second Mn site, Mn(2) is bonded in a 14-coordinate geometry to one Ho(1), two equivalent Mn(1), five equivalent Mn(2), two equivalent Ga(2), and four equivalent Ga(1) atoms. There are a spread of Mn(2)-Mn(2) bond distances ranging from 2.61-3.08 Å. Both Mn(2)-Ga(2) bond lengths are 2.72 Å. There are a spread of Mn(2)-Ga(1) bond distances ranging from 2.57-2.76 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(2) is bonded to two equivalent Ho(1), four equivalent Mn(2), two equivalent Ga(2), and four equivalent Ga(1) atoms to form a mixture of distorted face and corner-sharing GaHo2Mn4Ga6 cuboctahedra. Both Ga(2)-Ga(2) bond lengths are 2.41 Å. All Ga(2)-Ga(1) bond lengths are 2.62 Å. In the second Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), two equivalent Mn(1), four equivalent Mn(2), and two equivalent Ga(2) atoms.