Zr18Co5Sn4 crystallizes in the monoclinic Pm space group. There are eighteen inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 4-coordinate geometry to one Co(5), two equivalent Co(1), and one Sn(1) atom. In the second Zr site, Zr(2) is bonded in a 4-coordinate geometry to two equivalent Co(2), one Sn(2), and one Sn(4) atom. In the third Zr site, Zr(3) is bonded in a 4-coordinate geometry to one Co(4), two equivalent Co(3), and one Sn(3) atom. In the fourth Zr site, Zr(4) is bonded in a 4-coordinate geometry to two equivalent Co(2), one Sn(1), and one Sn(4) atom. In the fifth Zr site, Zr(5) is bonded in a 4-coordinate geometry to one Co(4), two equivalent Co(3), and one Sn(2) atom. In the sixth Zr site, Zr(6) is bonded in a 4-coordinate geometry to one Co(5), two equivalent Co(1), and one Sn(3) atom. In the seventh Zr site, Zr(7) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Sn(1), and one Sn(4) atom. In the eighth Zr site, Zr(8) is bonded in a 2-coordinate geometry to one Co(4), two equivalent Co(2), and one Sn(2) atom. In the ninth Zr site, Zr(9) is bonded in a 4-coordinate geometry to one Co(5), two equivalent Co(3), and one Sn(3) atom. In the tenth Zr site, Zr(10) is bonded in a 4-coordinate geometry to two equivalent Sn(2) and two equivalent Sn(4) atoms. In the eleventh Zr site, Zr(11) is bonded in a 4-coordinate geometry to two equivalent Co(4) and two equivalent Sn(3) atoms. In the twelfth Zr site, Zr(12) is bonded in a 4-coordinate geometry to two equivalent Co(5) and two equivalent Sn(1) atoms. In the thirteenth Zr site, Zr(13) is bonded in a 4-coordinate geometry to two equivalent Sn(1) and two equivalent Sn(4) atoms. In the fourteenth Zr site, Zr(14) is bonded in a 4-coordinate geometry to two equivalent Co(4) and two equivalent Sn(2) atoms. In the fifteenth Zr site, Zr(15) is bonded in a 2-coordinate geometry to two equivalent Co(5) and two equivalent Sn(3) atoms. In the sixteenth Zr site, Zr(16) is bonded in a 4-coordinate geometry to two equivalent Sn(1) and two equivalent Sn(4) atoms. In the seventeenth Zr site, Zr(17) is bonded in a 2-coordinate geometry to two equivalent Co(4) and two equivalent Sn(2) atoms. In the eighteenth Zr site, Zr(18) is bonded in a 2-coordinate geometry to two equivalent Co(5) and two equivalent Sn(3) atoms. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to two equivalent Zr(1), two equivalent Zr(6), and two equivalent Zr(7) atoms. In the second Co site, Co(2) is bonded in a 6-coordinate geometry to two equivalent Zr(2), two equivalent Zr(4), and two equivalent Zr(8) atoms. In the third Co site, Co(3) is bonded in a 6-coordinate geometry to two equivalent Zr(3), two equivalent Zr(5), and two equivalent Zr(9) atoms. In the fourth Co site, Co(4) is bonded in a 9-coordinate geometry to one Zr(3), one Zr(5), one Zr(8), two equivalent Zr(11), two equivalent Zr(14), and two equivalent Zr(17) atoms. In the fifth Co site, Co(5) is bonded in a 9-coordinate geometry to one Zr(1), one Zr(6), one Zr(9), two equivalent Zr(12), two equivalent Zr(15), and two equivalent Zr(18) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to one Zr(1), one Zr(4), one Zr(7), two equivalent Zr(12), two equivalent Zr(13), and two equivalent Zr(16) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Zr(2), one Zr(5), one Zr(8), two equivalent Zr(10), two equivalent Zr(14), and two equivalent Zr(17) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to one Zr(3), one Zr(6), one Zr(9), two equivalent Zr(11), two equivalent Zr(15), and two equivalent Zr(18) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to one Zr(2), one Zr(4), one Zr(7), two equivalent Zr(10), two equivalent Zr(13), and two equivalent Zr(16) atoms.
Zr18Co5Sn4 crystallizes in the monoclinic Pm space group. There are eighteen inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 4-coordinate geometry to one Co(5), two equivalent Co(1), and one Sn(1) atom. The Zr(1)-Co(5) bond length is 3.09 Å. Both Zr(1)-Co(1) bond lengths are 2.58 Å. The Zr(1)-Sn(1) bond length is 3.06 Å. In the second Zr site, Zr(2) is bonded in a 4-coordinate geometry to two equivalent Co(2), one Sn(2), and one Sn(4) atom. Both Zr(2)-Co(2) bond lengths are 2.57 Å. The Zr(2)-Sn(2) bond length is 3.11 Å. The Zr(2)-Sn(4) bond length is 3.12 Å. In the third Zr site, Zr(3) is bonded in a 4-coordinate geometry to one Co(4), two equivalent Co(3), and one Sn(3) atom. The Zr(3)-Co(4) bond length is 3.12 Å. Both Zr(3)-Co(3) bond lengths are 2.58 Å. The Zr(3)-Sn(3) bond length is 3.05 Å. In the fourth Zr site, Zr(4) is bonded in a 4-coordinate geometry to two equivalent Co(2), one Sn(1), and one Sn(4) atom. Both Zr(4)-Co(2) bond lengths are 2.60 Å. The Zr(4)-Sn(1) bond length is 3.19 Å. The Zr(4)-Sn(4) bond length is 3.11 Å. In the fifth Zr site, Zr(5) is bonded in a 4-coordinate geometry to one Co(4), two equivalent Co(3), and one Sn(2) atom. The Zr(5)-Co(4) bond length is 3.12 Å. Both Zr(5)-Co(3) bond lengths are 2.56 Å. The Zr(5)-Sn(2) bond length is 3.00 Å. In the sixth Zr site, Zr(6) is bonded in a 4-coordinate geometry to one Co(5), two equivalent Co(1), and one Sn(3) atom. The Zr(6)-Co(5) bond length is 3.10 Å. Both Zr(6)-Co(1) bond lengths are 2.57 Å. The Zr(6)-Sn(3) bond length is 3.05 Å. In the seventh Zr site, Zr(7) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Sn(1), and one Sn(4) atom. Both Zr(7)-Co(1) bond lengths are 2.57 Å. The Zr(7)-Sn(1) bond length is 3.04 Å. The Zr(7)-Sn(4) bond length is 3.13 Å. In the eighth Zr site, Zr(8) is bonded in a 2-coordinate geometry to one Co(4), two equivalent Co(2), and one Sn(2) atom. The Zr(8)-Co(4) bond length is 3.07 Å. Both Zr(8)-Co(2) bond lengths are 2.57 Å. The Zr(8)-Sn(2) bond length is 3.12 Å. In the ninth Zr site, Zr(9) is bonded in a 4-coordinate geometry to one Co(5), two equivalent Co(3), and one Sn(3) atom. The Zr(9)-Co(5) bond length is 3.13 Å. Both Zr(9)-Co(3) bond lengths are 2.58 Å. The Zr(9)-Sn(3) bond length is 3.07 Å. In the tenth Zr site, Zr(10) is bonded in a 4-coordinate geometry to two equivalent Sn(2) and two equivalent Sn(4) atoms. Both Zr(10)-Sn(2) bond lengths are 3.04 Å. Both Zr(10)-Sn(4) bond lengths are 2.99 Å. In the eleventh Zr site, Zr(11) is bonded in a 4-coordinate geometry to two equivalent Co(4) and two equivalent Sn(3) atoms. Both Zr(11)-Co(4) bond lengths are 2.71 Å. Both Zr(11)-Sn(3) bond lengths are 3.19 Å. In the twelfth Zr site, Zr(12) is bonded in a 4-coordinate geometry to two equivalent Co(5) and two equivalent Sn(1) atoms. Both Zr(12)-Co(5) bond lengths are 2.68 Å. Both Zr(12)-Sn(1) bond lengths are 3.12 Å. In the thirteenth Zr site, Zr(13) is bonded in a 4-coordinate geometry to two equivalent Sn(1) and two equivalent Sn(4) atoms. Both Zr(13)-Sn(1) bond lengths are 3.02 Å. Both Zr(13)-Sn(4) bond lengths are 2.99 Å. In the fourteenth Zr site, Zr(14) is bonded in a 4-coordinate geometry to two equivalent Co(4) and two equivalent Sn(2) atoms. Both Zr(14)-Co(4) bond lengths are 2.67 Å. Both Zr(14)-Sn(2) bond lengths are 3.16 Å. In the fifteenth Zr site, Zr(15) is bonded in a 2-coordinate geometry to two equivalent Co(5) and two equivalent Sn(3) atoms. Both Zr(15)-Co(5) bond lengths are 2.69 Å. Both Zr(15)-Sn(3) bond lengths are 3.21 Å. In the sixteenth Zr site, Zr(16) is bonded in a 4-coordinate geometry to two equivalent Sn(1) and two equivalent Sn(4) atoms. Both Zr(16)-Sn(1) bond lengths are 3.02 Å. Both Zr(16)-Sn(4) bond lengths are 2.98 Å. In the seventeenth Zr site, Zr(17) is bonded in a 2-coordinate geometry to two equivalent Co(4) and two equivalent Sn(2) atoms. Both Zr(17)-Co(4) bond lengths are 2.68 Å. Both Zr(17)-Sn(2) bond lengths are 3.18 Å. In the eighteenth Zr site, Zr(18) is bonded in a 2-coordinate geometry to two equivalent Co(5) and two equivalent Sn(3) atoms. Both Zr(18)-Co(5) bond lengths are 2.69 Å. Both Zr(18)-Sn(3) bond lengths are 3.20 Å. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to two equivalent Zr(1), two equivalent Zr(6), and two equivalent Zr(7) atoms. In the second Co site, Co(2) is bonded in a 6-coordinate geometry to two equivalent Zr(2), two equivalent Zr(4), and two equivalent Zr(8) atoms. In the third Co site, Co(3) is bonded in a 6-coordinate geometry to two equivalent Zr(3), two equivalent Zr(5), and two equivalent Zr(9) atoms. In the fourth Co site, Co(4) is bonded in a 9-coordinate geometry to one Zr(3), one Zr(5), one Zr(8), two equivalent Zr(11), two equivalent Zr(14), and two equivalent Zr(17) atoms. In the fifth Co site, Co(5) is bonded in a 9-coordinate geometry to one Zr(1), one Zr(6), one Zr(9), two equivalent Zr(12), two equivalent Zr(15), and two equivalent Zr(18) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to one Zr(1), one Zr(4), one Zr(7), two equivalent Zr(12), two equivalent Zr(13), and two equivalent Zr(16) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Zr(2), one Zr(5), one Zr(8), two equivalent Zr(10), two equivalent Zr(14), and two equivalent Zr(17) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to one Zr(3), one Zr(6), one Zr(9), two equivalent Zr(11), two equivalent Zr(15), and two equivalent Zr(18) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to one Zr(2), one Zr(4), one Zr(7), two equivalent Zr(10), two equivalent Zr(13), and two equivalent Zr(16) atoms.