Hierarchical assembly of a novel luminescent silver coordination framework with 4-(4-pyridylthiomethyl)benzoic acid

A novel Ag(I) coordination polymer, [Ag2(μ-ptmb)(μ3-ptmb)]·2H2O (1), (ptmb=4-(4-pyridylthiomethyl)benzoate), has been synthesized through self-assembly of AgNO3 with Hptmb in CH3CN/H2O mixed solution and characterized by elemental analysis and IR spectra. X-ray diffraction analysis shows that it is a 1D tape-like structure consisting of two kinds of rectangles, which is further hierarchically assembled by Ag⋯S and S⋯S weak interactions to form 3D open framework. Luminescence study indicates the complex has an emissive maximum at 500 nm in the solid state at room temperature.