PrZn5 crystallizes in the hexagonal P6/mmm space group. Pr(1) is bonded in a 18-coordinate geometry to six equivalent Zn(2) and twelve equivalent Zn(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to four equivalent Pr(1), four equivalent Zn(1), and four equivalent Zn(2) atoms to form a mixture of edge, face, and corner-sharing ZnPr4Zn8 cuboctahedra. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Zn(1) atoms.
PrZn5 crystallizes in the hexagonal P6/mmm space group. Pr(1) is bonded in a 18-coordinate geometry to six equivalent Zn(2) and twelve equivalent Zn(1) atoms. All Pr(1)-Zn(2) bond lengths are 3.09 Å. All Pr(1)-Zn(1) bond lengths are 3.41 Å. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to four equivalent Pr(1), four equivalent Zn(1), and four equivalent Zn(2) atoms to form a mixture of edge, face, and corner-sharing ZnPr4Zn8 cuboctahedra. All Zn(1)-Zn(1) bond lengths are 2.68 Å. All Zn(1)-Zn(2) bond lengths are 2.61 Å. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Zn(1) atoms.