Y3Mn3Ga2Si crystallizes in the hexagonal P-6 space group. Y(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 Y(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 Y(1) and six equivalent Mn(1) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to six equivalent Y(1) and three equivalent Mn(1) atoms. Si(1) is bonded in a 9-coordinate geometry to six equivalent Y(1) and three equivalent Mn(1) atoms.
Y3Mn3Ga2Si crystallizes in the hexagonal P-6 space group. Y(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 Y(1)-Mn(1) bond distances ranging from 3.18-3.37 Å. The Y(1)-Ga(1) bond length is 2.95 Å. Both Y(1)-Ga(2) bond lengths are 2.97 Å. Both Y(1)-Si(1) bond lengths are 2.93 Å. Mn(1) is bonded in a 12-coordinate geometry to six equivalent Y(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 2.84 Å. The Mn(1)-Ga(2) bond length is 2.81 Å. Both Mn(1)-Ga(1) bond lengths are 2.65 Å. The Mn(1)-Si(1) bond length is 2.69 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted q6 geometry to three equivalent Y(1) and six equivalent Mn(1) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to six equivalent Y(1) and three equivalent Mn(1) atoms. Si(1) is bonded in a 9-coordinate geometry to six equivalent Y(1) and three equivalent Mn(1) atoms.