Materials Data on PrNiO3 by Materials Project
PrNiO3 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Pr3+ is bonded in a 9-coordinate geometry to nine equivalent O2- atoms. There are three shorter (2.40 Å) and six longer (2.72 Å) Pr–O bond lengths. Ni3+ is bonded to six equivalent O2- atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 22°. All Ni–O bond lengths are 1.97 Å. O2- is bonded in a 5-coordinate geometry to three equivalent Pr3+ and two equivalent Ni3+ atoms.
36 MATERIALS SCIENCE↗