PrNi5Sn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 20-coordinate geometry to three equivalent Ni(3), three equivalent Ni(4), twelve equivalent Ni(1), and two equivalent Sn(1) atoms. In the second Pr site, Pr(2) is bonded in a 18-coordinate geometry to six equivalent Ni(1), six equivalent Ni(2), and six equivalent Sn(1) atoms. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Pr(2), two equivalent Pr(1), one Ni(2), one Ni(3), one Ni(4), four equivalent Ni(1), and two equivalent Sn(1) atoms to form a mixture of edge, face, and corner-sharing NiPr3Ni7Sn2 cuboctahedra. In the second Ni site, Ni(2) is bonded in a 10-coordinate geometry to three equivalent Pr(2), three equivalent Ni(1), and four equivalent Sn(1) atoms. In the third Ni site, Ni(3) is bonded in a 12-coordinate geometry to three equivalent Pr(1), three equivalent Ni(4), and six equivalent Ni(1) atoms. In the fourth Ni site, Ni(4) is bonded in a 12-coordinate geometry to three equivalent Pr(1), three equivalent Ni(3), and six equivalent Ni(1) atoms. Sn(1) is bonded in a 14-coordinate geometry to one Pr(1), three equivalent Pr(2), four equivalent Ni(2), and six equivalent Ni(1) atoms.
PrNi5Sn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 20-coordinate geometry to three equivalent Ni(3), three equivalent Ni(4), twelve equivalent Ni(1), and two equivalent Sn(1) atoms. All Pr(1)-Ni(3) bond lengths are 2.85 Å. All Pr(1)-Ni(4) bond lengths are 2.85 Å. All Pr(1)-Ni(1) bond lengths are 3.21 Å. Both Pr(1)-Sn(1) bond lengths are 3.21 Å. In the second Pr site, Pr(2) is bonded in a 18-coordinate geometry to six equivalent Ni(1), six equivalent Ni(2), and six equivalent Sn(1) atoms. All Pr(2)-Ni(1) bond lengths are 3.21 Å. All Pr(2)-Ni(2) bond lengths are 2.97 Å. All Pr(2)-Sn(1) bond lengths are 3.33 Å. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Pr(2), two equivalent Pr(1), one Ni(2), one Ni(3), one Ni(4), four equivalent Ni(1), and two equivalent Sn(1) atoms to form a mixture of edge, face, and corner-sharing NiPr3Ni7Sn2 cuboctahedra. The Ni(1)-Ni(2) bond length is 2.48 Å. The Ni(1)-Ni(3) bond length is 2.50 Å. The Ni(1)-Ni(4) bond length is 2.49 Å. There are two shorter (2.45 Å) and two longer (2.48 Å) Ni(1)-Ni(1) bond lengths. Both Ni(1)-Sn(1) bond lengths are 2.72 Å. In the second Ni site, Ni(2) is bonded in a 10-coordinate geometry to three equivalent Pr(2), three equivalent Ni(1), and four equivalent Sn(1) atoms. There is one shorter (2.59 Å) and three longer (2.98 Å) Ni(2)-Sn(1) bond lengths. In the third Ni site, Ni(3) is bonded in a 12-coordinate geometry to three equivalent Pr(1), three equivalent Ni(4), and six equivalent Ni(1) atoms. All Ni(3)-Ni(4) bond lengths are 2.85 Å. In the fourth Ni site, Ni(4) is bonded in a 12-coordinate geometry to three equivalent Pr(1), three equivalent Ni(3), and six equivalent Ni(1) atoms. Sn(1) is bonded in a 14-coordinate geometry to one Pr(1), three equivalent Pr(2), four equivalent Ni(2), and six equivalent Ni(1) atoms.