Ce2Cu5Zn2 crystallizes in the trigonal R-3m space group. There are six inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2), three equivalent Cu(3), six equivalent Cu(1), and six equivalent Zn(1) atoms. In the second Ce site, Ce(2) is bonded in a 12-coordinate geometry to nine equivalent Cu(1) and three equivalent Zn(2) atoms. In the third Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. In the fourth Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. In the fifth Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. In the sixth Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Ce(1), three equivalent Ce(2), one Cu(2), one Cu(3), four equivalent Cu(1), and one Zn(2) atom to form distorted CuCe5ZnCu6 cuboctahedra that share corners with two equivalent Zn(2)Ce6Cu6 cuboctahedra; corners with six Zn(1,1)Ce4Zn4Cu4 cuboctahedra; corners with nine equivalent Cu(1)Ce5ZnCu6 cuboctahedra; edges with four equivalent Cu(1)Ce5ZnCu6 cuboctahedra; edges with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra;  a faceface with one Zn(1)Ce4Zn4Cu4 cuboctahedra; faces with three equivalent Zn(2)Ce6Cu6 cuboctahedra; and faces with ten equivalent Cu(1)Ce5ZnCu6 cuboctahedra. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to three equivalent Ce(1), three equivalent Cu(1), and three equivalent Zn(1) atoms. In the third Cu site, Cu(3) is bonded in a 9-coordinate geometry to three equivalent Ce(1); three equivalent Cu(1); and three Zn(1,1) atoms. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to four equivalent Ce(1), two equivalent Cu(2), two equivalent Cu(3), and four equivalent Zn(1) atoms to form distorted ZnCe4Zn4Cu4 cuboctahedra that share corners with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra, edges with two equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, edges with eight equivalent Cu(1)Ce5ZnCu6 cuboctahedra, faces with two equivalent Cu(1)Ce5ZnCu6 cuboctahedra, and faces with eight equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra. In the second Zn site, Zn(2) is bonded to six equivalent Ce(2) and six equivalent Cu(1) atoms to form ZnCe6Cu6 cuboctahedra that share corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra, edges with six equivalent Zn(2)Ce6Cu6 cuboctahedra, and faces with eighteen equivalent Cu(1)Ce5ZnCu6 cuboctahedra. In the third Zn site, Zn(1) is bonded to four Ce(1,1); two equivalent Cu(2); two equivalent Cu(3); and four Zn(1,1) atoms to form distorted ZnCe4Zn4Cu4 cuboctahedra that share corners with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra; corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra; edges with two equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra; edges with eight equivalent Cu(1)Ce5ZnCu6 cuboctahedra; faces with two equivalent Cu(1)Ce5ZnCu6 cuboctahedra; and faces with eight Zn(1,1)Ce4Zn4Cu4 cuboctahedra. In the fourth Zn site, Zn(1) is bonded to four Ce(1,1); two equivalent Cu(2); two equivalent Cu(3); and four equivalent Zn(1) atoms to form distorted ZnCe4Zn4Cu4 cuboctahedra that share corners with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra, edges with two equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, edges with eight equivalent Cu(1)Ce5ZnCu6 cuboctahedra, faces with two equivalent Cu(1)Ce5ZnCu6 cuboctahedra, and faces with eight equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra.
Ce2Cu5Zn2 crystallizes in the trigonal R-3m space group. There are six inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2), three equivalent Cu(3), six equivalent Cu(1), and six equivalent Zn(1) atoms. All Ce(1)-Cu(2) bond lengths are 3.01 Å. All Ce(1)-Cu(3) bond lengths are 3.01 Å. All Ce(1)-Cu(1) bond lengths are 3.31 Å. All Ce(1)-Zn(1) bond lengths are 3.36 Å. In the second Ce site, Ce(2) is bonded in a 12-coordinate geometry to nine equivalent Cu(1) and three equivalent Zn(2) atoms. There are six shorter (3.07 Å) and three longer (3.12 Å) Ce(2)-Cu(1) bond lengths. All Ce(2)-Zn(2) bond lengths are 3.06 Å. In the third Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. All Ce(1)-Cu(2) bond lengths are 3.01 Å. All Ce(1)-Cu(3) bond lengths are 3.01 Å. All Ce(1)-Cu(1) bond lengths are 3.31 Å. All Ce(1)-Zn(1,1) bond lengths are 3.36 Å. In the fourth Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. All Ce(1)-Cu(2) bond lengths are 3.01 Å. All Ce(1)-Cu(3) bond lengths are 3.01 Å. All Ce(1)-Cu(1) bond lengths are 3.31 Å. All Ce(1)-Zn(1,1) bond lengths are 3.36 Å. In the fifth Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. All Ce(1)-Cu(2) bond lengths are 3.01 Å. All Ce(1)-Cu(3) bond lengths are 3.01 Å. All Ce(1)-Cu(1) bond lengths are 3.31 Å. All Ce(1)-Zn(1,1) bond lengths are 3.36 Å. In the sixth Ce site, Ce(1) is bonded in a 6-coordinate geometry to three equivalent Cu(2); three equivalent Cu(3); six equivalent Cu(1); and six Zn(1,1) atoms. All Ce(1)-Cu(2) bond lengths are 3.01 Å. All Ce(1)-Cu(3) bond lengths are 3.01 Å. All Ce(1)-Cu(1) bond lengths are 3.31 Å. All Ce(1)-Zn(1,1) bond lengths are 3.36 Å. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Ce(1), three equivalent Ce(2), one Cu(2), one Cu(3), four equivalent Cu(1), and one Zn(2) atom to form distorted CuCe5ZnCu6 cuboctahedra that share corners with two equivalent Zn(2)Ce6Cu6 cuboctahedra; corners with six Zn(1,1)Ce4Zn4Cu4 cuboctahedra; corners with nine equivalent Cu(1)Ce5ZnCu6 cuboctahedra; edges with four equivalent Cu(1)Ce5ZnCu6 cuboctahedra; edges with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra;  a faceface with one Zn(1)Ce4Zn4Cu4 cuboctahedra; faces with three equivalent Zn(2)Ce6Cu6 cuboctahedra; and faces with ten equivalent Cu(1)Ce5ZnCu6 cuboctahedra. The Cu(1)-Cu(2) bond length is 2.52 Å. The Cu(1)-Cu(3) bond length is 2.53 Å. There are two shorter (2.60 Å) and two longer (2.62 Å) Cu(1)-Cu(1) bond lengths. The Cu(1)-Zn(2) bond length is 2.64 Å. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to three equivalent Ce(1), three equivalent Cu(1), and three equivalent Zn(1) atoms. All Cu(2)-Zn(1) bond lengths are 2.61 Å. In the third Cu site, Cu(3) is bonded in a 9-coordinate geometry to three equivalent Ce(1); three equivalent Cu(1); and three Zn(1,1) atoms. All Cu(3)-Zn(1,1) bond lengths are 2.59 Å. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to four equivalent Ce(1), two equivalent Cu(2), two equivalent Cu(3), and four equivalent Zn(1) atoms to form distorted ZnCe4Zn4Cu4 cuboctahedra that share corners with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra, edges with two equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, edges with eight equivalent Cu(1)Ce5ZnCu6 cuboctahedra, faces with two equivalent Cu(1)Ce5ZnCu6 cuboctahedra, and faces with eight equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra. All Zn(1)-Zn(1) bond lengths are 2.61 Å. In the second Zn site, Zn(2) is bonded to six equivalent Ce(2) and six equivalent Cu(1) atoms to form ZnCe6Cu6 cuboctahedra that share corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra, edges with six equivalent Zn(2)Ce6Cu6 cuboctahedra, and faces with eighteen equivalent Cu(1)Ce5ZnCu6 cuboctahedra. In the third Zn site, Zn(1) is bonded to four Ce(1,1); two equivalent Cu(2); two equivalent Cu(3); and four Zn(1,1) atoms to form distorted ZnCe4Zn4Cu4 cuboctahedra that share corners with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra; corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra; edges with two equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra; edges with eight equivalent Cu(1)Ce5ZnCu6 cuboctahedra; faces with two equivalent Cu(1)Ce5ZnCu6 cuboctahedra; and faces with eight Zn(1,1)Ce4Zn4Cu4 cuboctahedra. Both Zn(1)-Cu(2) bond lengths are 2.61 Å. Both Zn(1)-Cu(3) bond lengths are 2.59 Å. All Zn(1)-Zn(1,1) bond lengths are 2.61 Å. In the fourth Zn site, Zn(1) is bonded to four Ce(1,1); two equivalent Cu(2); two equivalent Cu(3); and four equivalent Zn(1) atoms to form distorted ZnCe4Zn4Cu4 cuboctahedra that share corners with four equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, corners with twelve equivalent Cu(1)Ce5ZnCu6 cuboctahedra, edges with two equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra, edges with eight equivalent Cu(1)Ce5ZnCu6 cuboctahedra, faces with two equivalent Cu(1)Ce5ZnCu6 cuboctahedra, and faces with eight equivalent Zn(1)Ce4Zn4Cu4 cuboctahedra. Both Zn(1)-Cu(2) bond lengths are 2.61 Å. All Zn(1)-Zn(1) bond lengths are 2.61 Å.