Materials Data on PrBO3 by Materials Project
PrBO3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Pr3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Pr–O bond distances ranging from 2.44–2.72 Å. B3+ is bonded in a trigonal planar geometry to three O2- atoms. All B–O bond lengths are 1.38 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Pr3+ and one B3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Pr3+ and one B3+ atom.
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