Pr3Co4Sn13 crystallizes in the cubic Pm-3n space group. Pr(1) is bonded in a 16-coordinate geometry to four equivalent Co(1) and twelve equivalent Sn(2) atoms. Co(1) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 9-coordinate geometry to three equivalent Pr(1), two equivalent Co(1), one Sn(1), and three equivalent Sn(2) atoms. In the second Sn site, Sn(1) is bonded in a cuboctahedral geometry to twelve equivalent Sn(2) atoms.
Pr3Co4Sn13 crystallizes in the cubic Pm-3n space group. Pr(1) is bonded in a 16-coordinate geometry to four equivalent Co(1) and twelve equivalent Sn(2) atoms. All Pr(1)-Co(1) bond lengths are 3.40 Å. There are four shorter (3.32 Å) and eight longer (3.42 Å) Pr(1)-Sn(2) bond lengths. Co(1) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Sn(2) atoms. All Co(1)-Sn(2) bond lengths are 2.61 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 9-coordinate geometry to three equivalent Pr(1), two equivalent Co(1), one Sn(1), and three equivalent Sn(2) atoms. The Sn(2)-Sn(1) bond length is 3.27 Å. There is one shorter (3.04 Å) and two longer (3.22 Å) Sn(2)-Sn(2) bond lengths. In the second Sn site, Sn(1) is bonded in a cuboctahedral geometry to twelve equivalent Sn(2) atoms.