Reactions of aqueous copper acetate with triethylamine and 3,5-dimethylpyrazole

Abstract

The dissolution of aqueous copper acetate in tetrahydrofuran gives the Cu2(μ-OOCMe)4(thf)2 complex (1), and its reaction with triethylamine in the presence of acetic acid yields “[Cu2(μ-OOCMe)4[μ-OOCMe(HNEt3)]” n polymer (2). Complexes 1 and 2 react with 3,5-dimethylpyrazole to form Cu(Hdmpz)2(OOCMe)2 (3) and Cu2(μ-OOCMe)4(Hdmpz)2 (4), respectively. The structures of complexes 1–4 and that of solvate 4 × 0.5C6H6 (5) are determined by X-ray diffraction.