Materials Data on RbO3 by Materials Project
RbO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Rb is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Rb–O bond distances ranging from 2.96–3.27 Å. There are three inequivalent O sites. In the first O site, O is bonded in a trigonal planar geometry to one Rb and two O atoms. Both O–O bond lengths are 1.37 Å. In the second O site, O is bonded to four equivalent Rb and one O atom to form a mixture of distorted face, edge, and corner-sharing ORb4O trigonal bipyramids. In the third O site, O is bonded to four equivalent Rb and one O atom to form a mixture of distorted face, edge, and corner-sharing ORb4O trigonal bipyramids.
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