Ce5Sn3 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to two equivalent Sn(1) and four equivalent Sn(2) atoms. In the second Ce site, Ce(2) is bonded in a 5-coordinate geometry to two equivalent Sn(2) and three equivalent Sn(1) atoms. In the third Ce site, Ce(3) is bonded in a 5-coordinate geometry to one Sn(1) and four equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Ce(3), three equivalent Ce(2), and four equivalent Ce(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Ce(2), four equivalent Ce(1), and four equivalent Ce(3) atoms.
Ce5Sn3 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to two equivalent Sn(1) and four equivalent Sn(2) atoms. Both Ce(1)-Sn(1) bond lengths are 3.37 Å. All Ce(1)-Sn(2) bond lengths are 3.36 Å. In the second Ce site, Ce(2) is bonded in a 5-coordinate geometry to two equivalent Sn(2) and three equivalent Sn(1) atoms. Both Ce(2)-Sn(2) bond lengths are 3.22 Å. There is one shorter (3.37 Å) and two longer (3.65 Å) Ce(2)-Sn(1) bond lengths. In the third Ce site, Ce(3) is bonded in a 5-coordinate geometry to one Sn(1) and four equivalent Sn(2) atoms. The Ce(3)-Sn(1) bond length is 3.21 Å. There are a spread of Ce(3)-Sn(2) bond distances ranging from 3.21-3.65 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Ce(3), three equivalent Ce(2), and four equivalent Ce(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Ce(2), four equivalent Ce(1), and four equivalent Ce(3) atoms.