A new class of bipyridine-ligated metal carboxylate complexes: characterization of the triply-bridged ferromagnetically-coupled complexes [Cu2(OAc)3(bpy)2](ClO4) and [Cu2(OH)(H2O)(OAc)(bpy)2](ClO4)2

Abstract

Treatment of Cu₂(OAc)₄·2H₂O with 2,2′-bipyridine (bpy) and NaClO₄ in EtOH yields [Cu₂(OAc)₃(bpy)₂](ClO₄)(1) whereas the same reaction in hot water yields [Cu₂(OH)(H₂O)(OAc)(bpy)₂](ClO₄)₂(2); the novel structures of the complexes are described, together with the results of magnetic susceptibility studies which show that both complexes possess intramolecular ferromagnetic coupling.