Supramolecular architectures of four new transition metal complexes with 3-[4-(carboxymethoxy)phenyl]propanoic acid and N-[4-(carboxymethoxy)phenyl] iminodiacetic acid

Article abstract of DOI:10.1002/zaac.201000228

Four new transition metal complexes: [Cu(Hcppa)₂(H ₂O)₂] (1), [Co₂(cppa)₂(H ₂O)₁₀] (2), [Co₃(cpia)₂(H ₂O)₈]·2H₂O (3) and [Ni ₃(cpia)₂(H₂O)₁₂]·6H ₂O (4) {H₂cppa = 3-(4-(carboxymethoxy)phenyl]propanoic acid; H₃cpia = N-[4-(carboxymethoxy)phenyl]iminodiacetic acid} were synthesized and characterized. Complexes 1 and 2 show mononuclear structures, complexes 3 and 4 exhibit dinuclear structures. All complexes extend to 3D supramolecular networks through hydrogen bonds, of which complexes 3 and 4 display microporous structures. In complexes 2-4 the water clusters are trapped by the cooperative association of coordinate interactions as well as hydrogen bonds, forming different 1D metal-water chain structures. Thermal stabilities of complexes 1-4 were discussed. Copyright