Yb3CoSn6 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 10-coordinate geometry to one Sn(3), two equivalent Sn(4), three equivalent Sn(1), and four equivalent Sn(2) atoms. In the second Yb site, Yb(2) is bonded in a 11-coordinate geometry to one Co(1), two equivalent Sn(1), two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(2) atoms. Co(1) is bonded in a 6-coordinate geometry to one Yb(2), one Sn(4), two equivalent Sn(1), and two equivalent Sn(3) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 7-coordinate geometry to one Yb(2), three equivalent Yb(1), one Co(1), and two equivalent Sn(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Yb(2), four equivalent Yb(1), one Sn(2), and one Sn(4) atom. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent Yb(1), two equivalent Yb(2), and two equivalent Co(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to two equivalent Yb(2), four equivalent Yb(1), one Co(1), and two equivalent Sn(2) atoms.
Yb3CoSn6 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 10-coordinate geometry to one Sn(3), two equivalent Sn(4), three equivalent Sn(1), and four equivalent Sn(2) atoms. The Yb(1)-Sn(3) bond length is 3.38 Å. Both Yb(1)-Sn(4) bond lengths are 3.18 Å. There is one shorter (3.20 Å) and two longer (3.42 Å) Yb(1)-Sn(1) bond lengths. There are two shorter (3.31 Å) and two longer (3.56 Å) Yb(1)-Sn(2) bond lengths. In the second Yb site, Yb(2) is bonded in a 11-coordinate geometry to one Co(1), two equivalent Sn(1), two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(2) atoms. The Yb(2)-Co(1) bond length is 3.09 Å. Both Yb(2)-Sn(1) bond lengths are 3.33 Å. Both Yb(2)-Sn(3) bond lengths are 3.15 Å. Both Yb(2)-Sn(4) bond lengths are 3.29 Å. All Yb(2)-Sn(2) bond lengths are 3.28 Å. Co(1) is bonded in a 6-coordinate geometry to one Yb(2), one Sn(4), two equivalent Sn(1), and two equivalent Sn(3) atoms. The Co(1)-Sn(4) bond length is 2.52 Å. Both Co(1)-Sn(1) bond lengths are 2.48 Å. Both Co(1)-Sn(3) bond lengths are 2.53 Å. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 7-coordinate geometry to one Yb(2), three equivalent Yb(1), one Co(1), and two equivalent Sn(1) atoms. Both Sn(1)-Sn(1) bond lengths are 2.98 Å. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Yb(2), four equivalent Yb(1), one Sn(2), and one Sn(4) atom. The Sn(2)-Sn(2) bond length is 3.03 Å. The Sn(2)-Sn(4) bond length is 2.94 Å. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent Yb(1), two equivalent Yb(2), and two equivalent Co(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to two equivalent Yb(2), four equivalent Yb(1), one Co(1), and two equivalent Sn(2) atoms.