ThCoSn crystallizes in the hexagonal P-62m space group. Th(1) is bonded in a 11-coordinate geometry to one Co(2), four equivalent Co(1), and six equivalent Sn(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Th(1) and three equivalent Sn(1) atoms. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Th(1) and six equivalent Sn(1) atoms. Sn(1) is bonded in a 12-coordinate geometry to six equivalent Th(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Sn(1) atoms.
ThCoSn crystallizes in the hexagonal P-62m space group. Th(1) is bonded in a 11-coordinate geometry to one Co(2), four equivalent Co(1), and six equivalent Sn(1) atoms. The Th(1)-Co(2) bond length is 3.04 Å. All Th(1)-Co(1) bond lengths are 3.00 Å. There are two shorter (3.20 Å) and four longer (3.34 Å) Th(1)-Sn(1) bond lengths. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Th(1) and three equivalent Sn(1) atoms. All Co(1)-Sn(1) bond lengths are 2.82 Å. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Th(1) and six equivalent Sn(1) atoms. All Co(2)-Sn(1) bond lengths are 2.72 Å. Sn(1) is bonded in a 12-coordinate geometry to six equivalent Th(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Sn(1) atoms. Both Sn(1)-Sn(1) bond lengths are 3.15 Å.