Materials Data on ZnCrO3 by Materials Project
CrZnO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Cr4+ is bonded to six O2- atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedra tilt angles range from 39–44°. There are a spread of Cr–O bond distances ranging from 1.91–2.03 Å. Zn2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Zn–O bond distances ranging from 2.02–2.06 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Cr4+ and two equivalent Zn2+ atoms to form distorted corner-sharing OZn2Cr2 tetrahedra. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Cr4+ and one Zn2+ atom.