Tb2CuGa3 is Tungsten boride-derived structured and crystallizes in the trigonal P3m1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 12-coordinate geometry to three equivalent Cu(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to three equivalent Cu(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. Cu(1) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Ga(3), and three equivalent Ga(1) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Cu(1) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Ga(3) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Cu(1), and three equivalent Ga(2) atoms.
Tb2CuGa3 is Tungsten boride-derived structured and crystallizes in the trigonal P3m1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 12-coordinate geometry to three equivalent Cu(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. All Tb(1)-Cu(1) bond lengths are 2.89 Å. All Tb(1)-Ga(1) bond lengths are 3.10 Å. All Tb(1)-Ga(2) bond lengths are 3.38 Å. All Tb(1)-Ga(3) bond lengths are 2.98 Å. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to three equivalent Cu(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. All Tb(2)-Cu(1) bond lengths are 3.19 Å. All Tb(2)-Ga(1) bond lengths are 2.96 Å. All Tb(2)-Ga(2) bond lengths are 2.97 Å. All Tb(2)-Ga(3) bond lengths are 3.37 Å. Cu(1) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Ga(3), and three equivalent Ga(1) atoms. The Cu(1)-Ga(3) bond length is 3.04 Å. All Cu(1)-Ga(1) bond lengths are 2.54 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Cu(1) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Ga(3) atoms. All Ga(2)-Ga(3) bond lengths are 2.59 Å. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Cu(1), and three equivalent Ga(2) atoms.