Tb2(RuGa3)3 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded in a 11-coordinate geometry to one Ga(1), two equivalent Ga(3), two equivalent Ga(4), and six equivalent Ga(2) atoms. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 8-coordinate geometry to two equivalent Ga(3), two equivalent Ga(4), and four equivalent Ga(2) atoms. In the second Ru site, Ru(2) is bonded in a 8-coordinate geometry to two equivalent Ga(1), two equivalent Ga(3), and four equivalent Ga(2) atoms. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Tb(1), two equivalent Ru(2), two equivalent Ga(4), and four equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 3-coordinate geometry to three equivalent Tb(1), one Ru(2), two equivalent Ru(1), one Ga(1), one Ga(3), and one Ga(4) atom. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to two equivalent Tb(1), one Ru(2), two equivalent Ru(1), one Ga(3), two equivalent Ga(2), and two equivalent Ga(4) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to two equivalent Tb(1), two equivalent Ru(1), one Ga(1), one Ga(4), two equivalent Ga(2), and two equivalent Ga(3) atoms.
Tb2(RuGa3)3 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded in a 11-coordinate geometry to one Ga(1), two equivalent Ga(3), two equivalent Ga(4), and six equivalent Ga(2) atoms. The Tb(1)-Ga(1) bond length is 3.04 Å. Both Tb(1)-Ga(3) bond lengths are 3.05 Å. There is one shorter (3.02 Å) and one longer (3.07 Å) Tb(1)-Ga(4) bond length. There are a spread of Tb(1)-Ga(2) bond distances ranging from 3.05-3.16 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 8-coordinate geometry to two equivalent Ga(3), two equivalent Ga(4), and four equivalent Ga(2) atoms. Both Ru(1)-Ga(3) bond lengths are 2.62 Å. Both Ru(1)-Ga(4) bond lengths are 2.61 Å. There are two shorter (2.54 Å) and two longer (2.56 Å) Ru(1)-Ga(2) bond lengths. In the second Ru site, Ru(2) is bonded in a 8-coordinate geometry to two equivalent Ga(1), two equivalent Ga(3), and four equivalent Ga(2) atoms. Both Ru(2)-Ga(1) bond lengths are 2.62 Å. Both Ru(2)-Ga(3) bond lengths are 2.62 Å. All Ru(2)-Ga(2) bond lengths are 2.57 Å. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Tb(1), two equivalent Ru(2), two equivalent Ga(4), and four equivalent Ga(2) atoms. Both Ga(1)-Ga(4) bond lengths are 2.72 Å. All Ga(1)-Ga(2) bond lengths are 2.70 Å. In the second Ga site, Ga(2) is bonded in a 3-coordinate geometry to three equivalent Tb(1), one Ru(2), two equivalent Ru(1), one Ga(1), one Ga(3), and one Ga(4) atom. The Ga(2)-Ga(3) bond length is 2.76 Å. The Ga(2)-Ga(4) bond length is 2.74 Å. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to two equivalent Tb(1), one Ru(2), two equivalent Ru(1), one Ga(3), two equivalent Ga(2), and two equivalent Ga(4) atoms. The Ga(3)-Ga(3) bond length is 2.70 Å. Both Ga(3)-Ga(4) bond lengths are 2.79 Å. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to two equivalent Tb(1), two equivalent Ru(1), one Ga(1), one Ga(4), two equivalent Ga(2), and two equivalent Ga(3) atoms. The Ga(4)-Ga(4) bond length is 2.72 Å.