π‐Stacking and hydrogen bonding in catena‐poly[[(4,4′‐bipyridine‐κN)­di­oxo­uranium(VI)]‐di‐μ‐hydroxo]

The title compound, UO₂(OH)₂(C₁₀H₈N₂)]_n, was obtained under hydro­thermal conditions. The U atom is seven‐coordinated and its environment is penta­gonal bipyramidal, with the oxo atoms in axial positions, and one N atom and four hydroxide groups in the equatorial plane. The hydroxide ions are bridging, which results in the formation of infinite chains with the bipyridine mol­ecules alternately located on either side. Neighbouring chains inter­penetrate so that each bipyridine ligand is involved both in hydrogen bonds with two hydroxide ions and in π‐stacking with its two neighbours from the next chain.