Rare Supramolecular Assemblies of a Dicopper(II)-tetracarboxylate Stabilized by (Methanol)(6), Dimethyl Sulfoxide and 4,4 '-Azobipyridyl Bridges

摘要

abstract_textpTwo new supramolecular assemblies formed by Cu-2(Hdiphba)(4) (H(2)diphba=4-hydroxy-3,5-di-iso-propylbenzoic acid) in protic and aprotic solvents have been investigated. Methanol gives rise a 3D hydrogen-bonded network comprised of Cu-2(Hdiphba)(4) and extremely rare twisted-boat methanol cyclohexamer synthons. While, dimethyl sulfoxide (DMSO), an aprotic solvent, gives a 2D assembly in which DMSO bridges Cu-2(Hdiphba)(4) units to form 1D rectangular channels, entrapping guest DMSO arranged in a zig-zag chain. The solvent molecules could be replaced with neutral N,N'-donor linkers to form 1D coordination polymers./p/abstract_text