Design of supramolecular complexes: from concept to crystal structures

Abstract

Sessions9 1 frameworks has grown drastically over the past few years.The use of multifunctional ligands, such as organometallic complexes, permits the introduction of other functionalities within the frameworks.We have synthesized and characterized a series of metal-organometallic framework (MOMF) materials, derived from simple [CpFe-(η 6 -arenecarboxylate)] bridging ligands.Depending on the reaction conditions, solid state structures ranging from simple 1D polymer chains to three dimensional square grid structures have been obtained.For example, the reaction of Ni(NO3)2•6H2O with [CpFe] + -metalated 1,4-benzenedicarboxylic acid (1) results in [Ni3(1-H)4(H2O)2(μ-H2O)2][NO3]2, a 3D framework material constructed of square grid nickel-carboxylate networks that are interconnected in the third dimension through additional nickel ions.The synthesis, structure and characterization of these materials will be presented.