Pr5(Rh2Sn5)2 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 16-coordinate geometry to four equivalent Rh(1), four equivalent Sn(2), and eight equivalent Sn(3) atoms. In the second Pr site, Pr(2) is bonded to four equivalent Rh(1), two equivalent Sn(1), two equivalent Sn(3), and four equivalent Sn(2) atoms to form distorted face-sharing PrSn8Rh4 cuboctahedra. In the third Pr site, Pr(3) is bonded in a 14-coordinate geometry to four equivalent Rh(1), two equivalent Sn(3), four equivalent Sn(1), and four equivalent Sn(2) atoms. Rh(1) is bonded in a 10-coordinate geometry to one Pr(1), two equivalent Pr(2), two equivalent Pr(3), one Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(3), two equivalent Rh(1), and one Sn(1) atom. In the second Sn site, Sn(2) is bonded in a 2-coordinate geometry to one Pr(1), two equivalent Pr(2), two equivalent Pr(3), and two equivalent Rh(1) atoms. In the third Sn site, Sn(3) is bonded in a 2-coordinate geometry to one Pr(2), one Pr(3), two equivalent Pr(1), and two equivalent Rh(1) atoms.
Pr5(Rh2Sn5)2 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 16-coordinate geometry to four equivalent Rh(1), four equivalent Sn(2), and eight equivalent Sn(3) atoms. All Pr(1)-Rh(1) bond lengths are 3.49 Å. All Pr(1)-Sn(2) bond lengths are 3.56 Å. All Pr(1)-Sn(3) bond lengths are 3.29 Å. In the second Pr site, Pr(2) is bonded to four equivalent Rh(1), two equivalent Sn(1), two equivalent Sn(3), and four equivalent Sn(2) atoms to form distorted face-sharing PrSn8Rh4 cuboctahedra. All Pr(2)-Rh(1) bond lengths are 3.33 Å. Both Pr(2)-Sn(1) bond lengths are 3.17 Å. Both Pr(2)-Sn(3) bond lengths are 3.35 Å. All Pr(2)-Sn(2) bond lengths are 3.34 Å. In the third Pr site, Pr(3) is bonded in a 14-coordinate geometry to four equivalent Rh(1), two equivalent Sn(3), four equivalent Sn(1), and four equivalent Sn(2) atoms. All Pr(3)-Rh(1) bond lengths are 3.66 Å. Both Pr(3)-Sn(3) bond lengths are 3.57 Å. All Pr(3)-Sn(1) bond lengths are 3.49 Å. All Pr(3)-Sn(2) bond lengths are 3.63 Å. Rh(1) is bonded in a 10-coordinate geometry to one Pr(1), two equivalent Pr(2), two equivalent Pr(3), one Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms. The Rh(1)-Sn(1) bond length is 2.68 Å. There is one shorter (2.65 Å) and one longer (2.75 Å) Rh(1)-Sn(2) bond length. Both Rh(1)-Sn(3) bond lengths are 2.61 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(3), two equivalent Rh(1), and one Sn(1) atom. The Sn(1)-Sn(1) bond length is 2.82 Å. In the second Sn site, Sn(2) is bonded in a 2-coordinate geometry to one Pr(1), two equivalent Pr(2), two equivalent Pr(3), and two equivalent Rh(1) atoms. In the third Sn site, Sn(3) is bonded in a 2-coordinate geometry to one Pr(2), one Pr(3), two equivalent Pr(1), and two equivalent Rh(1) atoms.