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 18-coordinate geometry to six equivalent Co(1), six equivalent Sn(1), and six equivalent Sn(6) atoms. In the second Dy site, Dy(2) is bonded in a 12-coordinate geometry to two equivalent Co(1), one Sn(2), one Sn(5), two equivalent Sn(1), two equivalent Sn(6), and four equivalent Sn(4) atoms. Co(1) is bonded in a 9-coordinate geometry to one Dy(1), two equivalent Dy(2), one Sn(2), one Sn(4), two equivalent Sn(1), and two equivalent Sn(6) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 2-coordinate geometry to one Dy(1), two equivalent Dy(2), and two equivalent Co(1) atoms. In the second Sn site, Sn(2) is bonded in a 7-coordinate geometry to three equivalent Dy(2), three equivalent Co(1), and one Sn(5) atom. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to six equivalent Sn(6) atoms. In the fourth Sn site, Sn(4) is bonded in a 5-coordinate geometry to four equivalent Dy(2), one Co(1), and one Sn(6) atom. In the fifth Sn site, Sn(5) is bonded in a 3-coordinate geometry to three equivalent Dy(2) and one Sn(2) atom. In the sixth Sn site, Sn(6) is bonded in a 7-coordinate geometry to one Dy(1), two equivalent Dy(2), two equivalent Co(1), one Sn(3), and one Sn(4) atom.
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 18-coordinate geometry to six equivalent Co(1), six equivalent Sn(1), and six equivalent Sn(6) atoms. All Dy(1)-Co(1) bond lengths are 3.41 Å. All Dy(1)-Sn(1) bond lengths are 3.35 Å. All Dy(1)-Sn(6) bond lengths are 3.34 Å. In the second Dy site, Dy(2) is bonded in a 12-coordinate geometry to two equivalent Co(1), one Sn(2), one Sn(5), two equivalent Sn(1), two equivalent Sn(6), and four equivalent Sn(4) atoms. Both Dy(2)-Co(1) bond lengths are 3.17 Å. The Dy(2)-Sn(2) bond length is 3.39 Å. The Dy(2)-Sn(5) bond length is 3.08 Å. Both Dy(2)-Sn(1) bond lengths are 3.38 Å. Both Dy(2)-Sn(6) bond lengths are 3.21 Å. There are two shorter (3.10 Å) and two longer (3.25 Å) Dy(2)-Sn(4) bond lengths. Co(1) is bonded in a 9-coordinate geometry to one Dy(1), two equivalent Dy(2), one Sn(2), one Sn(4), two equivalent Sn(1), and two equivalent Sn(6) atoms. The Co(1)-Sn(2) bond length is 2.78 Å. The Co(1)-Sn(4) bond length is 2.65 Å. Both Co(1)-Sn(1) bond lengths are 2.56 Å. Both Co(1)-Sn(6) bond lengths are 2.61 Å. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 2-coordinate geometry to one Dy(1), two equivalent Dy(2), and two equivalent Co(1) atoms. In the second Sn site, Sn(2) is bonded in a 7-coordinate geometry to three equivalent Dy(2), three equivalent Co(1), and one Sn(5) atom. The Sn(2)-Sn(5) bond length is 2.90 Å. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to six equivalent Sn(6) atoms. All Sn(3)-Sn(6) bond lengths are 2.95 Å. In the fourth Sn site, Sn(4) is bonded in a 5-coordinate geometry to four equivalent Dy(2), one Co(1), and one Sn(6) atom. The Sn(4)-Sn(6) bond length is 3.19 Å. In the fifth Sn site, Sn(5) is bonded in a 3-coordinate geometry to three equivalent Dy(2) and one Sn(2) atom. In the sixth Sn site, Sn(6) is bonded in a 7-coordinate geometry to one Dy(1), two equivalent Dy(2), two equivalent Co(1), one Sn(3), and one Sn(4) atom.