HoMnGa crystallizes in the hexagonal P-62m space group. Ho(1) is bonded in a 11-coordinate geometry to one Mn(2), four equivalent Mn(1), and six equivalent Ga(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Ga(1) atoms. In the second Mn site, Mn(2) is bonded in a 9-coordinate geometry to three equivalent Ho(1) and six equivalent Ga(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to six equivalent Ho(1), two equivalent Mn(1), and two equivalent Mn(2) atoms.
HoMnGa crystallizes in the hexagonal P-62m space group. Ho(1) is bonded in a 11-coordinate geometry to one Mn(2), four equivalent Mn(1), and six equivalent Ga(1) atoms. The Ho(1)-Mn(2) bond length is 2.96 Å. All Ho(1)-Mn(1) bond lengths are 2.92 Å. There are two shorter (3.05 Å) and four longer (3.20 Å) Ho(1)-Ga(1) bond lengths. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Ga(1) atoms. All Mn(1)-Ga(1) bond lengths are 2.72 Å. In the second Mn site, Mn(2) is bonded in a 9-coordinate geometry to three equivalent Ho(1) and six equivalent Ga(1) atoms. All Mn(2)-Ga(1) bond lengths are 2.74 Å. Ga(1) is bonded in a 10-coordinate geometry to six equivalent Ho(1), two equivalent Mn(1), and two equivalent Mn(2) atoms.