Dy7Co6Sn23 crystallizes in the trigonal P-3m1 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a distorted hexagonal planar geometry to six equivalent Sn(5) atoms. In the second Dy site, Dy(2) is bonded in a 12-coordinate geometry to two equivalent Co(1), one Sn(1), one Sn(6), two equivalent Sn(3), two equivalent Sn(5), and four equivalent Sn(2) atoms. Co(1) is bonded in a 6-coordinate geometry to two equivalent Dy(2), one Sn(3), one Sn(6), and two equivalent Sn(5) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(6) is bonded in a 3-coordinate geometry to three equivalent Dy(2), three equivalent Co(1), and one Sn(1) atom. In the second Sn site, Sn(1) is bonded in a 7-coordinate geometry to three equivalent Dy(2), one Sn(6), and three equivalent Sn(2) atoms. In the third Sn site, Sn(2) is bonded in a 8-coordinate geometry to four equivalent Dy(2), one Sn(1), one Sn(3), and two equivalent Sn(2) atoms. In the fourth Sn site, Sn(3) is bonded in a distorted single-bond geometry to two equivalent Dy(2), one Co(1), one Sn(2), and one Sn(4) atom. In the fifth Sn site, Sn(4) is bonded in a distorted octahedral geometry to six equivalent Sn(3) atoms. In the sixth Sn site, Sn(5) is bonded in a 2-coordinate geometry to one Dy(1), two equivalent Dy(2), and two equivalent Co(1) atoms.
Dy7Co6Sn23 crystallizes in the trigonal P-3m1 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a distorted hexagonal planar geometry to six equivalent Sn(5) atoms. All Dy(1)-Sn(5) bond lengths are 3.52 Å. In the second Dy site, Dy(2) is bonded in a 12-coordinate geometry to two equivalent Co(1), one Sn(1), one Sn(6), two equivalent Sn(3), two equivalent Sn(5), and four equivalent Sn(2) atoms. Both Dy(2)-Co(1) bond lengths are 2.91 Å. The Dy(2)-Sn(1) bond length is 3.48 Å. The Dy(2)-Sn(6) bond length is 3.19 Å. Both Dy(2)-Sn(3) bond lengths are 3.37 Å. Both Dy(2)-Sn(5) bond lengths are 3.55 Å. There are two shorter (3.36 Å) and two longer (3.67 Å) Dy(2)-Sn(2) bond lengths. Co(1) is bonded in a 6-coordinate geometry to two equivalent Dy(2), one Sn(3), one Sn(6), and two equivalent Sn(5) atoms. The Co(1)-Sn(3) bond length is 2.33 Å. The Co(1)-Sn(6) bond length is 2.49 Å. Both Co(1)-Sn(5) bond lengths are 2.42 Å. There are six inequivalent Sn sites. In the first Sn site, Sn(6) is bonded in a 3-coordinate geometry to three equivalent Dy(2), three equivalent Co(1), and one Sn(1) atom. The Sn(6)-Sn(1) bond length is 3.39 Å. In the second Sn site, Sn(1) is bonded in a 7-coordinate geometry to three equivalent Dy(2), one Sn(6), and three equivalent Sn(2) atoms. All Sn(1)-Sn(2) bond lengths are 3.23 Å. In the third Sn site, Sn(2) is bonded in a 8-coordinate geometry to four equivalent Dy(2), one Sn(1), one Sn(3), and two equivalent Sn(2) atoms. The Sn(2)-Sn(3) bond length is 3.22 Å. Both Sn(2)-Sn(2) bond lengths are 3.20 Å. In the fourth Sn site, Sn(3) is bonded in a distorted single-bond geometry to two equivalent Dy(2), one Co(1), one Sn(2), and one Sn(4) atom. The Sn(3)-Sn(4) bond length is 2.81 Å. In the fifth Sn site, Sn(4) is bonded in a distorted octahedral geometry to six equivalent Sn(3) atoms. In the sixth Sn site, Sn(5) is bonded in a 2-coordinate geometry to one Dy(1), two equivalent Dy(2), and two equivalent Co(1) atoms.