Materials Data on BaPtO7 by Materials Project
BaPtO7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Ba is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Ba–O bond distances ranging from 2.66–3.15 Å. Pt is bonded in an octahedral geometry to six O atoms. There are a spread of Pt–O bond distances ranging from 1.98–2.19 Å. There are five inequivalent O sites. In the first O site, O is bonded in a trigonal planar geometry to one Pt and two equivalent O atoms. Both O–O bond lengths are 1.45 Å. In the second O site, O is bonded to three equivalent Ba and one Pt atom to form a mixture of distorted edge and corner-sharing OBa3Pt trigonal pyramids. In the third O site, O is bonded in a 1-coordinate geometry to one Ba, one Pt, and one O atom. In the fourth O site, O is bonded in a 4-coordinate geometry to two equivalent Ba, one Pt, and one O atom. The O–O bond length is 1.44 Å. In the fifth O site, O is bonded in a water-like geometry to two equivalent O atoms.