Microware synthesis of a novel porphyrin-anthraquinone and its photoinduced electron transfer properties

A novel porphyrin-anthraquinone compound was synthesized under microwave radiation.The structure of new compounds have been confirmed by IR,UV-visible spectrum,1HNMR.The influence of structure to spectral property were discussed.The results indicated ultraviolet-visible absorption shifted to red due to anthraquinone connected to the porphyrin molecules to expand the conjugated system of the compounds.Fluorescence spectra show that porphyrin and anthraquinone via amido link form a conjugated system.Thus,the excited state photoelectron in porphin ring transfer to the anthraquinone,resulting in fluorescence quenching.