Ho3Mn3SiGa2 crystallizes in the hexagonal P-6 space group. Ho(1) is bonded in a 5-coordinate geometry to six equivalent Mn(1), one Ga(1), two equivalent Ga(2), and two equivalent Si(1) atoms. Mn(1) is bonded in a 12-coordinate geometry to six equivalent Ho(1), two equivalent Mn(1), one Ga(2), two equivalent Ga(1), and one Si(1) atom. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted q6 geometry to three equivalent Ho(1) and six equivalent Mn(1) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Mn(1) atoms. Si(1) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Mn(1) atoms.
Ho3Mn3SiGa2 crystallizes in the hexagonal P-6 space group. Ho(1) is bonded in a 5-coordinate geometry to six equivalent Mn(1), one Ga(1), two equivalent Ga(2), and two equivalent Si(1) atoms. There are a spread of Ho(1)-Mn(1) bond distances ranging from 3.15-3.35 Å. The Ho(1)-Ga(1) bond length is 2.94 Å. Both Ho(1)-Ga(2) bond lengths are 2.94 Å. Both Ho(1)-Si(1) bond lengths are 2.91 Å. Mn(1) is bonded in a 12-coordinate geometry to six equivalent Ho(1), two equivalent Mn(1), one Ga(2), two equivalent Ga(1), and one Si(1) atom. Both Mn(1)-Mn(1) bond lengths are 2.79 Å. The Mn(1)-Ga(2) bond length is 2.77 Å. Both Mn(1)-Ga(1) bond lengths are 2.63 Å. The Mn(1)-Si(1) bond length is 2.68 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted q6 geometry to three equivalent Ho(1) and six equivalent Mn(1) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Mn(1) atoms. Si(1) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Mn(1) atoms.