Materials Data on TbNiO3 by Materials Project
TbNiO3 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Tb4+ is bonded in a 3-coordinate geometry to nine equivalent O2- atoms. There are three shorter (2.26 Å) and six longer (2.66 Å) Tb–O bond lengths. Ni2+ is bonded to six equivalent O2- atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 28°. All Ni–O bond lengths are 1.95 Å. O2- is bonded in a 5-coordinate geometry to three equivalent Tb4+ and two equivalent Ni2+ atoms.