PrNi3Ga2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 18-coordinate geometry to three equivalent Ni(2), six equivalent Ni(1), three equivalent Ga(1), and six equivalent Ga(2) 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 Ga(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 10-coordinate geometry to one Pr(2), two equivalent Pr(1), one Ni(1), two equivalent Ni(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the second Ni site, Ni(2) is bonded to two equivalent Pr(1), two equivalent Pr(2), four equivalent Ni(1), two equivalent Ga(1), and two equivalent Ga(2) atoms to form a mixture of distorted face and corner-sharing NiPr4Ga4Ni4 cuboctahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Ni(2), and four equivalent Ni(1) atoms. In the second Ga site, Ga(2) is bonded in a 6-coordinate geometry to four equivalent Pr(1), two equivalent Ni(2), and four equivalent Ni(1) atoms.
PrNi3Ga2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 18-coordinate geometry to three equivalent Ni(2), six equivalent Ni(1), three equivalent Ga(1), and six equivalent Ga(2) atoms. All Pr(1)-Ni(2) bond lengths are 3.18 Å. All Pr(1)-Ni(1) bond lengths are 3.05 Å. All Pr(1)-Ga(1) bond lengths are 3.25 Å. All Pr(1)-Ga(2) bond lengths are 3.29 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 Ga(1) atoms. All Pr(2)-Ni(1) bond lengths are 2.86 Å. All Pr(2)-Ni(2) bond lengths are 3.27 Å. All Pr(2)-Ga(1) bond lengths are 3.17 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 10-coordinate geometry to one Pr(2), two equivalent Pr(1), one Ni(1), two equivalent Ni(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. The Ni(1)-Ni(1) bond length is 2.58 Å. Both Ni(1)-Ni(2) bond lengths are 2.59 Å. Both Ni(1)-Ga(1) bond lengths are 2.43 Å. There is one shorter (2.38 Å) and one longer (2.48 Å) Ni(1)-Ga(2) bond length. In the second Ni site, Ni(2) is bonded to two equivalent Pr(1), two equivalent Pr(2), four equivalent Ni(1), two equivalent Ga(1), and two equivalent Ga(2) atoms to form a mixture of distorted face and corner-sharing NiPr4Ga4Ni4 cuboctahedra. Both Ni(2)-Ga(1) bond lengths are 2.49 Å. Both Ni(2)-Ga(2) bond lengths are 2.62 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Ni(2), and four equivalent Ni(1) atoms. In the second Ga site, Ga(2) is bonded in a 6-coordinate geometry to four equivalent Pr(1), two equivalent Ni(2), and four equivalent Ni(1) atoms.