Materials Data on BaCO4 by Materials Project
BaCOO3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ba is bonded in a 12-coordinate geometry to twelve O atoms. There are a spread of Ba–O bond distances ranging from 2.81–3.23 Å. C is bonded in a tetrahedral geometry to four O atoms. All C–O bond lengths are 1.38 Å. There are three inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to three equivalent Ba and one C atom. In the second O site, O is bonded in a single-bond geometry to three equivalent Ba and one C atom. In the third O site, O is bonded in a distorted single-bond geometry to three equivalent Ba and one C atom.