Materials Data on RbUC3O8 by Materials Project
RbUC3O8 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Rb1+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Rb–O bond distances ranging from 3.05–3.53 Å. U3+ is bonded in a distorted pentagonal bipyramidal geometry to seven O2- atoms. There are a spread of U–O bond distances ranging from 1.80–2.51 Å. There are three inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) C–O bond length. In the second C4+ site, C4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.30 Å) C–O bond length. In the third C4+ site, C4+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to one Rb1+, one U3+, and one C4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one Rb1+, one U3+, and one C4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Rb1+, one U3+, and one C4+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Rb1+, one U3+, and one C4+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and one U3+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one U3+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one Rb1+, one U3+, and one C4+ atom.