Ce4Co2Sn5 crystallizes in the monoclinic C2/m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 10-coordinate geometry to two equivalent Co(1), one Sn(2), three equivalent Sn(3), and four equivalent Sn(1) atoms. In the second Ce site, Ce(2) is bonded in a 9-coordinate geometry to two equivalent Co(1), two equivalent Sn(2), two equivalent Sn(3), and three equivalent Sn(1) atoms. Co(1) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), one Sn(1), one Sn(2), and three equivalent Sn(3) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Ce(2), four equivalent Ce(1), one Co(1), and one Sn(1) atom. In the second Sn site, Sn(2) is bonded in a 12-coordinate geometry to two equivalent Ce(1), four equivalent Ce(2), two equivalent Co(1), and four equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Ce(2), three equivalent Ce(1), three equivalent Co(1), and two equivalent Sn(2) atoms.
Ce4Co2Sn5 crystallizes in the monoclinic C2/m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 10-coordinate geometry to two equivalent Co(1), one Sn(2), three equivalent Sn(3), and four equivalent Sn(1) atoms. Both Ce(1)-Co(1) bond lengths are 3.25 Å. The Ce(1)-Sn(2) bond length is 3.71 Å. There are two shorter (3.21 Å) and one longer (3.25 Å) Ce(1)-Sn(3) bond length. There are two shorter (3.40 Å) and two longer (3.42 Å) Ce(1)-Sn(1) bond lengths. In the second Ce site, Ce(2) is bonded in a 9-coordinate geometry to two equivalent Co(1), two equivalent Sn(2), two equivalent Sn(3), and three equivalent Sn(1) atoms. Both Ce(2)-Co(1) bond lengths are 3.15 Å. Both Ce(2)-Sn(2) bond lengths are 3.38 Å. There is one shorter (3.24 Å) and one longer (3.55 Å) Ce(2)-Sn(3) bond length. There are two shorter (3.28 Å) and one longer (3.39 Å) Ce(2)-Sn(1) bond length. Co(1) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), one Sn(1), one Sn(2), and three equivalent Sn(3) atoms. The Co(1)-Sn(1) bond length is 2.60 Å. The Co(1)-Sn(2) bond length is 2.61 Å. There are two shorter (2.75 Å) and one longer (2.77 Å) Co(1)-Sn(3) bond length. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Ce(2), four equivalent Ce(1), one Co(1), and one Sn(1) atom. The Sn(1)-Sn(1) bond length is 2.98 Å. In the second Sn site, Sn(2) is bonded in a 12-coordinate geometry to two equivalent Ce(1), four equivalent Ce(2), two equivalent Co(1), and four equivalent Sn(3) atoms. All Sn(2)-Sn(3) bond lengths are 3.28 Å. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Ce(2), three equivalent Ce(1), three equivalent Co(1), and two equivalent Sn(2) atoms.