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inorganic compounds
The title compound, Rb2[UO2Cl4]·2H2O, has a [UO2Cl4]2- anion, with close to D4h (4/mmm) symmetry, a U-O distance of 1.751 (9) Å and U-Cl distances of 2.644 (3) and 2.650 (4) Å. The compound is confirmed to be the dihydrate; the degree of hydration had been controversial.