Y5Co5Ga crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 7-coordinate geometry to three equivalent Co(3) and four equivalent Co(1) atoms. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to two equivalent Co(1), four equivalent Co(2), and three equivalent Ga(1) atoms. In the third Y site, Y(3) is bonded in a 8-coordinate geometry to two equivalent Co(2), two equivalent Co(3), three equivalent Co(1), and one Ga(1) atom. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), three equivalent Y(3), one Co(2), and one Co(3) atom. In the second Co site, Co(2) is bonded in a 10-coordinate geometry to two equivalent Y(3), four equivalent Y(2), one Co(1), one Co(2), and two equivalent Ga(1) atoms. In the third Co site, Co(3) is bonded in a 9-coordinate geometry to three equivalent Y(1), four equivalent Y(3), and two equivalent Co(1) atoms. Ga(1) is bonded to two equivalent Y(3), six equivalent Y(2), and four equivalent Co(2) atoms to form a mixture of distorted edge and face-sharing GaY8Co4 cuboctahedra.
Y5Co5Ga crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 7-coordinate geometry to three equivalent Co(3) and four equivalent Co(1) atoms. There are two shorter (2.91 Å) and one longer (3.12 Å) Y(1)-Co(3) bond length. All Y(1)-Co(1) bond lengths are 3.05 Å. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to two equivalent Co(1), four equivalent Co(2), and three equivalent Ga(1) atoms. Both Y(2)-Co(1) bond lengths are 2.90 Å. There is one shorter (2.91 Å) and three longer (3.01 Å) Y(2)-Co(2) bond lengths. There is one shorter (3.11 Å) and two longer (3.41 Å) Y(2)-Ga(1) bond lengths. In the third Y site, Y(3) is bonded in a 8-coordinate geometry to two equivalent Co(2), two equivalent Co(3), three equivalent Co(1), and one Ga(1) atom. Both Y(3)-Co(2) bond lengths are 3.06 Å. Both Y(3)-Co(3) bond lengths are 2.99 Å. There are two shorter (2.88 Å) and one longer (3.17 Å) Y(3)-Co(1) bond length. The Y(3)-Ga(1) bond length is 3.13 Å. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), three equivalent Y(3), one Co(2), and one Co(3) atom. The Co(1)-Co(2) bond length is 2.29 Å. The Co(1)-Co(3) bond length is 2.24 Å. In the second Co site, Co(2) is bonded in a 10-coordinate geometry to two equivalent Y(3), four equivalent Y(2), one Co(1), one Co(2), and two equivalent Ga(1) atoms. The Co(2)-Co(2) bond length is 2.53 Å. Both Co(2)-Ga(1) bond lengths are 2.46 Å. In the third Co site, Co(3) is bonded in a 9-coordinate geometry to three equivalent Y(1), four equivalent Y(3), and two equivalent Co(1) atoms. Ga(1) is bonded to two equivalent Y(3), six equivalent Y(2), and four equivalent Co(2) atoms to form a mixture of distorted edge and face-sharing GaY8Co4 cuboctahedra.