Pr3(Ni3Ga)2 crystallizes in the cubic Im-3m space group. Pr(1) is bonded in a 12-coordinate geometry to eight equivalent Ni(1) and four equivalent Ga(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to four equivalent Pr(1), four equivalent Ni(1), and two equivalent Ga(1) atoms. Ga(1) is bonded to six equivalent Pr(1) and six equivalent Ni(1) atoms to form a mixture of corner and face-sharing GaPr6Ni6 cuboctahedra.
Pr3(Ni3Ga)2 crystallizes in the cubic Im-3m space group. Pr(1) is bonded in a 12-coordinate geometry to eight equivalent Ni(1) and four equivalent Ga(1) atoms. There are four shorter (2.84 Å) and four longer (3.04 Å) Pr(1)-Ni(1) bond lengths. All Pr(1)-Ga(1) bond lengths are 3.22 Å. Ni(1) is bonded in a 10-coordinate geometry to four equivalent Pr(1), four equivalent Ni(1), and two equivalent Ga(1) atoms. All Ni(1)-Ni(1) bond lengths are 2.61 Å. Both Ni(1)-Ga(1) bond lengths are 2.50 Å. Ga(1) is bonded to six equivalent Pr(1) and six equivalent Ni(1) atoms to form a mixture of corner and face-sharing GaPr6Ni6 cuboctahedra.