First use of the succinamate(-1) ligand in 3d-metal chemistry:dinuclear copper(II) complexes with the rare [Cu_2(eta~1:mu_2-O_2CR)_2(eta~1:eta~1:mu_2-O_2CR)]~+,[Cu_2(eta~1:eta~1:mu_2-O_2CR)_2]~(2+) and [Cu_2(mu-OH)(mu-OH_2)(eta~1:eta~1:mu_2-O_2CR)]~(

摘要

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'-biyridine (dmby) or 2,2'-bipyridine (bpy) afforded the new complexes [Cu_2(LH)_3(dmbpy)_2](OH) centre dot H_2O centre dot MeOH (1a),[Cu_2(LH)_3(dmbpy)_2(H_2O)_2](ClO_4)_2 centre dot 2H_2O (2),[Cu_4(LH)_5(dmbpy)_4]_n(ClO_4)_3 centre dot nH_2O centre dot 0.53NmEoh (3) AND [Cu_2(OH)(H_2O)(LH)(bpy)_2](ClO_4)_2 (4), which have beeen characterized by single-crystal -ray crystallography and IR spectroscopy.The dinuclear complexes contain extremely rare cores,while the novel cationic coordination polymer 3 consists of alternating dinuclear units.