Tb3Mn3Ga2Si crystallizes in the hexagonal P-62m space group. Tb(1) is bonded in a 11-coordinate geometry to six equivalent Mn(1), four equivalent Ga(1), and one Si(1) atom. Mn(1) is bonded in a 12-coordinate geometry to six equivalent Tb(1), two equivalent Mn(1), two equivalent Ga(1), and two equivalent Si(1) atoms. Ga(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1) and three equivalent Mn(1) atoms. Si(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Mn(1) atoms.
Tb3Mn3Ga2Si crystallizes in the hexagonal P-62m space group. Tb(1) is bonded in a 11-coordinate geometry to six equivalent Mn(1), four equivalent Ga(1), and one Si(1) atom. There are four shorter (3.19 Å) and two longer (3.34 Å) Tb(1)-Mn(1) bond lengths. All Tb(1)-Ga(1) bond lengths are 2.93 Å. The Tb(1)-Si(1) bond length is 2.89 Å. Mn(1) is bonded in a 12-coordinate geometry to six equivalent Tb(1), two equivalent Mn(1), two equivalent Ga(1), and two equivalent Si(1) atoms. Both Mn(1)-Mn(1) bond lengths are 2.72 Å. Both Mn(1)-Ga(1) bond lengths are 2.88 Å. Both Mn(1)-Si(1) bond lengths are 2.52 Å. Ga(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1) and three equivalent Mn(1) atoms. Si(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Mn(1) atoms.