Bis(μ-pyridazine-3-carboxylato-κ2O:O′)bis[aquadioxido(pyridazine-3-carboxylato-κ2N2,O)uranium(VI)] dihydrate

The structure of the binuclear title complex, [U2(C5H3N2O2)4O4(H2O)2]·2H2O, is composed of centrosymmetric dimers in which each UO22+ ion is coordinated by two ligand molecules. One donates its N,O-bonding group and the other donates both carboxylate O atoms. Each of the latter bridges adjacent uranyl ions. The coordination environment of the metal center is a distorted pentagonal bipyramid. The dimers are interconnected by O—H...O hydrogen bonds between coordinated and uncoordinated water molecules and carboxylate O atoms. An intramolecular O—H...N interaction is also present.

Abstract licence: CC BY

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