UCu3Ga2 crystallizes in the hexagonal P6/mmm space group. U(1) is bonded in a 18-coordinate geometry to twelve equivalent Cu(1) and six equivalent Ga(1) atoms. Cu(1) is bonded to four equivalent U(1), four equivalent Cu(1), and four equivalent Ga(1) atoms to form a mixture of distorted edge, face, and corner-sharing CuU4Ga4Cu4 cuboctahedra. Ga(1) is bonded in a 9-coordinate geometry to three equivalent U(1) and six equivalent Cu(1) atoms.
UCu3Ga2 crystallizes in the hexagonal P6/mmm space group. U(1) is bonded in a 18-coordinate geometry to twelve equivalent Cu(1) and six equivalent Ga(1) atoms. All U(1)-Cu(1) bond lengths are 3.30 Å. All U(1)-Ga(1) bond lengths are 3.03 Å. Cu(1) is bonded to four equivalent U(1), four equivalent Cu(1), and four equivalent Ga(1) atoms to form a mixture of distorted edge, face, and corner-sharing CuU4Ga4Cu4 cuboctahedra. All Cu(1)-Cu(1) bond lengths are 2.62 Å. All Cu(1)-Ga(1) bond lengths are 2.52 Å. Ga(1) is bonded in a 9-coordinate geometry to three equivalent U(1) and six equivalent Cu(1) atoms.