New Zinc (II) Phthalocyanines Substituents: Synthesis, Characterization, Aggregation Behavior, Electronic and Antibacterial Properties

This work reports on the synthesis of zinc (II) phthalocyanines bearing 4- ( (furan-2-ylmethyl) thio) and 4- ( (furan-2-ylmethyl) sulfonyl) substituents at peripheral position. The structure of the new zinc (II) phthalocyanines was elucidated by using nuclear magnetic resonance spectroscopy ( 1H NMR, 13C NMR), infrared (IR) and UV-visible spectroscopy. The aggregation state of two phthalocyanines synthesized in organic solvents such as dichloromethane, dimethylformamide and dimethyl sulfoxide was analysed in correlation with its photochemical behavior. General trends were described for the antimicrobial activity of synthesized zinc (II) phthalocyanines derivates screened against a wide range of Gram-positive and Gram-negative bacteria showed modest zone of inhibition.