Three silver (I) supramolecular compounds constructed from pyridinium or methylimidazolium polycations: Synthesis, crystal structure and properties

Abstract

Three metal halide cluster supramolecular polymers, {(TBP)[Ag3Br6]}n (1), {(TBI)[Ag3Br6]}n (2) and {(TBP)[Ag3I6]}n(3) (TBP =1, 3, 5-tris(N-pyridinium methyl)benzene, TBI =1, 3, 5-tris(methylimidazole methyl)benzene), have been synthesized and characterized by thermoanalysis and spectroscopic methods, as well as single-crystal X-ray diffraction. Complexes 1, 2 and 3 all feature a one-dimensional chain structure, which is further extended by electrostatic attraction. The TGA, UV-Vis diffuse reflectance spectra in the solid state and optical band gap properties of the three complexes were also investigated.