Materials Data on BaNiO2 by Materials Project
BaNiO2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ba2+ is bonded in a distorted body-centered cubic geometry to eight equivalent O2- atoms. There are a spread of Ba–O bond distances ranging from 2.73–2.97 Å. Ni2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ni–O bond lengths are 1.91 Å. O2- is bonded in a 6-coordinate geometry to four equivalent Ba2+ and two equivalent Ni2+ atoms.
36 MATERIALS SCIENCE↗