Th3Os4Sn13 crystallizes in the cubic Pm-3n space group. Th(1) is bonded in a 16-coordinate geometry to four equivalent Os(1) and twelve equivalent Sn(2) atoms. Os(1) is bonded in a 9-coordinate geometry to three equivalent Th(1) and six equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 2-coordinate geometry to three equivalent Th(1), two equivalent Os(1), and one Sn(1) atom. In the second Sn site, Sn(1) is bonded in a cuboctahedral geometry to twelve equivalent Sn(2) atoms.
Th3Os4Sn13 crystallizes in the cubic Pm-3n space group. Th(1) is bonded in a 16-coordinate geometry to four equivalent Os(1) and twelve equivalent Sn(2) atoms. All Th(1)-Os(1) bond lengths are 3.47 Å. All Th(1)-Sn(2) bond lengths are 3.46 Å. Os(1) is bonded in a 9-coordinate geometry to three equivalent Th(1) and six equivalent Sn(2) atoms. All Os(1)-Sn(2) bond lengths are 2.69 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 2-coordinate geometry to three equivalent Th(1), two equivalent Os(1), and one Sn(1) atom. The Sn(2)-Sn(1) bond length is 3.35 Å. In the second Sn site, Sn(1) is bonded in a cuboctahedral geometry to twelve equivalent Sn(2) atoms.