Dy2Cu12Ga5 crystallizes in the trigonal R-3m space group. Dy(1) is bonded in a 19-coordinate geometry to six equivalent Cu(1), nine equivalent Cu(2), one Ga(2), and three equivalent Ga(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 12-coordinate geometry to two equivalent Dy(1), two equivalent Cu(1), four equivalent Cu(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the second Cu site, Cu(2) is bonded to three equivalent Dy(1), two equivalent Cu(2), four equivalent Cu(1), one Ga(2), and two equivalent Ga(1) atoms to form a mixture of distorted edge, face, and corner-sharing CuDy3Ga3Cu6 cuboctahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 12-coordinate geometry to two equivalent Dy(1), four equivalent Cu(1), four equivalent Cu(2), and two equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 14-coordinate geometry to one Dy(1), three equivalent Cu(2), six equivalent Cu(1), one Ga(2), and three equivalent Ga(1) atoms.
Dy2Cu12Ga5 crystallizes in the trigonal R-3m space group. Dy(1) is bonded in a 19-coordinate geometry to six equivalent Cu(1), nine equivalent Cu(2), one Ga(2), and three equivalent Ga(1) atoms. All Dy(1)-Cu(1) bond lengths are 3.01 Å. There are a spread of Dy(1)-Cu(2) bond distances ranging from 3.04-3.35 Å. The Dy(1)-Ga(2) bond length is 3.11 Å. All Dy(1)-Ga(1) bond lengths are 3.39 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 12-coordinate geometry to two equivalent Dy(1), two equivalent Cu(1), four equivalent Cu(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. Both Cu(1)-Cu(1) bond lengths are 2.72 Å. There are two shorter (2.56 Å) and two longer (2.62 Å) Cu(1)-Cu(2) bond lengths. Both Cu(1)-Ga(1) bond lengths are 2.51 Å. Both Cu(1)-Ga(2) bond lengths are 3.00 Å. In the second Cu site, Cu(2) is bonded to three equivalent Dy(1), two equivalent Cu(2), four equivalent Cu(1), one Ga(2), and two equivalent Ga(1) atoms to form a mixture of distorted edge, face, and corner-sharing CuDy3Ga3Cu6 cuboctahedra. Both Cu(2)-Cu(2) bond lengths are 2.47 Å. The Cu(2)-Ga(2) bond length is 2.75 Å. Both Cu(2)-Ga(1) bond lengths are 2.55 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 12-coordinate geometry to two equivalent Dy(1), four equivalent Cu(1), four equivalent Cu(2), and two equivalent Ga(2) atoms. Both Ga(1)-Ga(2) bond lengths are 2.65 Å. In the second Ga site, Ga(2) is bonded in a 14-coordinate geometry to one Dy(1), three equivalent Cu(2), six equivalent Cu(1), one Ga(2), and three equivalent Ga(1) atoms. The Ga(2)-Ga(2) bond length is 2.52 Å.