Crystal structure of aqua-ammine-(μ-succinato)copper(II) dihydrate, Cu(H2O)(NH3)(C4H4O4) ·2H2O

C 4H13CuNO7,m onoclinic, P12/c1(no.13), a =8.434(3)Å, b =7.230(3) Å, c =8.309(3) Å, b =112.209(5)°,V =469.1 Å 3 , Z =2,R gt (F) =0.020, wR ref (F 2 ) =0.051, T =293 K. Source of materialCrystals of aqua-ammine-(m-succinato)copper(II) dihydrate were unexpectedly formed during an attempt to synthesize the mixed ligand copper complex.Am ixture of copper chloride dihydrate (34.2 mg, 0.2 mmol), NaOH (16 mg, 0.4 mmol), succinic acid (23.6 mg, 0.2 mmol), and 5,7-dimethyl-1,8naphthyridine-2-amine (35 mg, 0.2 mmol), in ethanol (10 ml) was refluxed for 1h.The resulted light blue precipitate was collected and dissolved in 3mlofconcentrated ammonia.Blue block-like crystals were obtained by slow evaporation of the ammonia solution at ambient temperature.

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