First use of the succinamate(−1) ligand in 3d-metal chemistry: dinuclear copper(II) complexes with the rare [Cu2(η1:μ2-O2CR)2(η1:η1:μ2-O2CR)]+, [Cu2(η1:η1:μ2-O2CR)2]2+ and [Cu2(μ-OH)(μ-OH2)(η1:η1:μ2-O2CR)]2+ cores, and a novel one-dimensional polymerizati

A systematic investigation of the reactions of 3d-metal ions with succinamate(−1) (LH−) in the presence of aromatic N,N′-donors has been initiated and initial results are described. Several reaction schemes involving various copper(II) sources, LH− and 4,4′-dimethyl-2,2′-bipyridine (dmbpy) or 2,2′-bipyridine (bpy) afforded the new complexes [Cu2(LH)3(dmbpy)2](OH) · H2O · MeOH (1a), [Cu2(LH)2(dmbpy)2(H2O)2](ClO4)2 · 2H2O (2), [Cu4(LH)5(dmbpy)4]n(ClO4)3n · nH2O · 0.53nMeOH (3) and [Cu2(OH)(H2O)(LH)(bpy)2](ClO4)2 (4), which have been characterized by single-crystal X-ray crystallography and IR spectroscopy. The dinuclear complexes contain extremely rare cores, while the novel cationic coordination polymer 3 consists of alternating dinuclear units.