PrNiO3 crystallizes in the trigonal R-3c space group. Pr(1) is bonded in a 9-coordinate geometry to nine equivalent O(1) atoms. Ni(1) is bonded to six equivalent O(1) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 19°. O(1) is bonded in a 5-coordinate geometry to three equivalent Pr(1) and two equivalent Ni(1) atoms.
PrNiO3 crystallizes in the trigonal R-3c space group. Pr(1) is bonded in a 9-coordinate geometry to nine equivalent O(1) atoms. There are three shorter (2.40 Å) and six longer (2.68 Å) Pr(1)-O(1) bond lengths. Ni(1) is bonded to six equivalent O(1) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 19°. All Ni(1)-O(1) bond lengths are 1.93 Å. O(1) is bonded in a 5-coordinate geometry to three equivalent Pr(1) and two equivalent Ni(1) atoms.