CePd3Ga8 crystallizes in the trigonal R-3m space group. Ce(1) is bonded in a 20-coordinate geometry to two equivalent Pd(1); four equivalent Pd(2); two Ga(2,2); two equivalent Ga(4); four equivalent Ga(1); and six equivalent Ga(3) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 6-coordinate geometry to three equivalent Ce(1), three equivalent Ga(1), and three equivalent Ga(3) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to two equivalent Ce(1); two equivalent Ga(1); two Ga(2,2); two equivalent Ga(3); and two equivalent Ga(4) atoms. In the third Pd site, Pd(3) is bonded in a cuboctahedral geometry to six Ga(2,2,2,2) and six equivalent Ga(4) atoms. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ce(1); one Pd(1); two equivalent Pd(2); one Ga(3); two Ga(2,2); and two equivalent Ga(4) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. In the third Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. In the fourth Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1), one Pd(3), two equivalent Pd(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(4) atoms. In the fifth Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. In the sixth Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. In the seventh Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. In the eighth Ga site, Ga(3) is bonded in a 3-coordinate geometry to three equivalent Ce(1), one Pd(1), two equivalent Pd(2), and one Ga(1) atom. In the ninth Ga site, Ga(4) is bonded in a 3-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); and two Ga(2,2) atoms.
CePd3Ga8 crystallizes in the trigonal R-3m space group. Ce(1) is bonded in a 20-coordinate geometry to two equivalent Pd(1); four equivalent Pd(2); two Ga(2,2); two equivalent Ga(4); four equivalent Ga(1); and six equivalent Ga(3) atoms. Both Ce(1)-Pd(1) bond lengths are 3.47 Å. All Ce(1)-Pd(2) bond lengths are 3.19 Å. Both Ce(1)-Ga(2,2) bond lengths are 3.14 Å. Both Ce(1)-Ga(4) bond lengths are 3.24 Å. All Ce(1)-Ga(1) bond lengths are 3.28 Å. There are four shorter (3.42 Å) and two longer (3.63 Å) Ce(1)-Ga(3) bond lengths. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 6-coordinate geometry to three equivalent Ce(1), three equivalent Ga(1), and three equivalent Ga(3) atoms. All Pd(1)-Ga(1) bond lengths are 2.68 Å. All Pd(1)-Ga(3) bond lengths are 2.59 Å. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to two equivalent Ce(1); two equivalent Ga(1); two Ga(2,2); two equivalent Ga(3); and two equivalent Ga(4) atoms. Both Pd(2)-Ga(1) bond lengths are 2.62 Å. Both Pd(2)-Ga(2,2) bond lengths are 2.71 Å. Both Pd(2)-Ga(3) bond lengths are 2.62 Å. Both Pd(2)-Ga(4) bond lengths are 2.67 Å. In the third Pd site, Pd(3) is bonded in a cuboctahedral geometry to six Ga(2,2,2,2) and six equivalent Ga(4) atoms. All Pd(3)-Ga(2,2,2,2) bond lengths are 2.87 Å. All Pd(3)-Ga(4) bond lengths are 2.81 Å. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ce(1); one Pd(1); two equivalent Pd(2); one Ga(3); two Ga(2,2); and two equivalent Ga(4) atoms. The Ga(1)-Ga(3) bond length is 2.72 Å. Both Ga(1)-Ga(2,2) bond lengths are 2.74 Å. Both Ga(1)-Ga(4) bond lengths are 2.68 Å. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. The Ga(2)-Ce(1) bond length is 3.14 Å. The Ga(2)-Pd(3) bond length is 2.87 Å. Both Ga(2)-Pd(2) bond lengths are 2.71 Å. Both Ga(2)-Ga(2,2) bond lengths are 2.87 Å. Both Ga(2)-Ga(4) bond lengths are 2.76 Å. In the third Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. The Ga(2)-Ce(1) bond length is 3.14 Å. The Ga(2)-Pd(3) bond length is 2.87 Å. Both Ga(2)-Pd(2) bond lengths are 2.71 Å. Both Ga(2)-Ga(1) bond lengths are 2.74 Å. Both Ga(2)-Ga(2,2) bond lengths are 2.87 Å. Both Ga(2)-Ga(4) bond lengths are 2.76 Å. In the fourth Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1), one Pd(3), two equivalent Pd(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(4) atoms. Both Ga(2)-Pd(2) bond lengths are 2.71 Å. Both Ga(2)-Ga(2) bond lengths are 2.87 Å. Both Ga(2)-Ga(4) bond lengths are 2.76 Å. In the fifth Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. Both Ga(2)-Pd(2) bond lengths are 2.71 Å. Both Ga(2)-Ga(1) bond lengths are 2.74 Å. Both Ga(2)-Ga(2,2) bond lengths are 2.87 Å. Both Ga(2)-Ga(4) bond lengths are 2.76 Å. In the sixth Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. The Ga(2)-Ce(1) bond length is 3.14 Å. Both Ga(2)-Ga(1) bond lengths are 2.74 Å. The Ga(2)-Ga(2) bond length is 2.87 Å. Both Ga(2)-Ga(4) bond lengths are 2.76 Å. In the seventh Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); two Ga(2,2); and two equivalent Ga(4) atoms. The Ga(2)-Ce(1) bond length is 3.14 Å. Both Ga(2)-Ga(1) bond lengths are 2.74 Å. The Ga(2)-Ga(2) bond length is 2.87 Å. Both Ga(2)-Ga(4) bond lengths are 2.76 Å. In the eighth Ga site, Ga(3) is bonded in a 3-coordinate geometry to three equivalent Ce(1), one Pd(1), two equivalent Pd(2), and one Ga(1) atom. In the ninth Ga site, Ga(4) is bonded in a 3-coordinate geometry to one Ce(1); one Pd(3); two equivalent Pd(2); two equivalent Ga(1); and two Ga(2,2) atoms.