Ce8CoGa3 crystallizes in the orthorhombic Cmc2_1 space group. There are six inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 5-coordinate geometry to one Co(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the second Ce site, Ce(2) is bonded in a 5-coordinate geometry to one Co(1), one Ga(1), and three equivalent Ga(2) atoms. In the third Ce site, Ce(3) is bonded in a 4-coordinate geometry to one Co(1), one Ga(1), and two equivalent Ga(2) atoms. In the fourth Ce site, Ce(4) is bonded in a 3-coordinate geometry to one Co(1) and four equivalent Ga(2) atoms. In the fifth Ce site, Ce(5) is bonded in a 3-coordinate geometry to one Co(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the sixth Ce site, Ce(6) is bonded in a 6-coordinate geometry to two equivalent Ga(1) and four equivalent Ga(2) atoms. Co(1) is bonded in a 7-coordinate geometry to one Ce(1), one Ce(3), one Ce(4), two equivalent Ce(2), and two equivalent Ce(5) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 11-coordinate geometry to one Ce(3), two equivalent Ce(1), two equivalent Ce(2), two equivalent Ce(6), and four equivalent Ce(5) atoms. In the second Ga site, Ga(2) is bonded in a 11-coordinate geometry to one Ce(1), one Ce(3), two equivalent Ce(4), two equivalent Ce(5), two equivalent Ce(6), and three equivalent Ce(2) atoms.
Ce8CoGa3 crystallizes in the orthorhombic Cmc2_1 space group. There are six inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 5-coordinate geometry to one Co(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. The Ce(1)-Co(1) bond length is 2.75 Å. There is one shorter (3.19 Å) and one longer (3.26 Å) Ce(1)-Ga(1) bond length. Both Ce(1)-Ga(2) bond lengths are 3.03 Å. In the second Ce site, Ce(2) is bonded in a 5-coordinate geometry to one Co(1), one Ga(1), and three equivalent Ga(2) atoms. The Ce(2)-Co(1) bond length is 2.74 Å. The Ce(2)-Ga(1) bond length is 3.02 Å. There are a spread of Ce(2)-Ga(2) bond distances ranging from 3.03-3.26 Å. In the third Ce site, Ce(3) is bonded in a 4-coordinate geometry to one Co(1), one Ga(1), and two equivalent Ga(2) atoms. The Ce(3)-Co(1) bond length is 2.55 Å. The Ce(3)-Ga(1) bond length is 3.04 Å. Both Ce(3)-Ga(2) bond lengths are 3.05 Å. In the fourth Ce site, Ce(4) is bonded in a 3-coordinate geometry to one Co(1) and four equivalent Ga(2) atoms. The Ce(4)-Co(1) bond length is 2.86 Å. There are two shorter (3.22 Å) and two longer (3.60 Å) Ce(4)-Ga(2) bond lengths. In the fifth Ce site, Ce(5) is bonded in a 3-coordinate geometry to one Co(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. The Ce(5)-Co(1) bond length is 2.85 Å. There is one shorter (3.23 Å) and one longer (3.61 Å) Ce(5)-Ga(1) bond length. There is one shorter (3.23 Å) and one longer (3.62 Å) Ce(5)-Ga(2) bond length. In the sixth Ce site, Ce(6) is bonded in a 6-coordinate geometry to two equivalent Ga(1) and four equivalent Ga(2) atoms. There is one shorter (3.30 Å) and one longer (3.33 Å) Ce(6)-Ga(1) bond length. There are two shorter (3.30 Å) and two longer (3.32 Å) Ce(6)-Ga(2) bond lengths. Co(1) is bonded in a 7-coordinate geometry to one Ce(1), one Ce(3), one Ce(4), two equivalent Ce(2), and two equivalent Ce(5) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 11-coordinate geometry to one Ce(3), two equivalent Ce(1), two equivalent Ce(2), two equivalent Ce(6), and four equivalent Ce(5) atoms. In the second Ga site, Ga(2) is bonded in a 11-coordinate geometry to one Ce(1), one Ce(3), two equivalent Ce(4), two equivalent Ce(5), two equivalent Ce(6), and three equivalent Ce(2) atoms.