PrNi2Al3 crystallizes in the hexagonal P6/mmm space group. Pr(1) is bonded in a 18-coordinate geometry to six equivalent Ni(1) and twelve equivalent Al(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Al(1) atoms. Al(1) is bonded to four equivalent Pr(1) and four equivalent Ni(1) atoms to form a mixture of distorted edge, corner, and face-sharing AlPr4Ni4 cuboctahedra.
PrNi2Al3 crystallizes in the hexagonal P6/mmm space group. Pr(1) is bonded in a 18-coordinate geometry to six equivalent Ni(1) and twelve equivalent Al(1) atoms. All Pr(1)-Ni(1) bond lengths are 3.08 Å. All Pr(1)-Al(1) bond lengths are 3.34 Å. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Al(1) atoms. All Ni(1)-Al(1) bond lengths are 2.53 Å. Al(1) is bonded to four equivalent Pr(1) and four equivalent Ni(1) atoms to form a mixture of distorted edge, corner, and face-sharing AlPr4Ni4 cuboctahedra.