Abstract
A novel series of fluorinated coumarin substituted zinc (II) /silicon (IV) phthalocyanines were synthesized. Their structures were characterized by FT-IR, 1H NMR, ESI methods as well as elemental analysis. Their photophysical and photochemical properties were investigated by UV–Vis and fluorescence spectroscopic methods. The effects of the central ions and the substitution positions of fluorinated coumarin on the photophysical and photochemical properties of phthalocyanine rings were studied. The photoinduced intramolecular energy transfer between the phthalocyanine and fluorinated coumarin evidenced the fluorescence spectra changes. The above results demonstrated that newly synthesized phthalocyanines could be good candidates for photodynamic therapy of cancer.
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