Materials Data on RbIO3 by Materials Project
RbO3I crystallizes in the trigonal R3m space group. The structure is three-dimensional. Rb1+ is bonded in a 12-coordinate geometry to twelve equivalent O2- atoms. There are a spread of Rb–O bond distances ranging from 3.12–3.56 Å. O2- is bonded in a distorted single-bond geometry to four equivalent Rb1+ and one I5+ atom. The O–I bond length is 1.84 Å. I5+ is bonded in a 6-coordinate geometry to three equivalent O2- atoms.
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