Comparative Studies of Photophysicochemical Properties of Non- Peripherally Anisole/Thioanisole-Tetrasubstituted Gallium(III) Phthalocyanines Containing Oxygen/ Sulfur Bridge

Abstract

In this work, we have presented the synthesis and characterization of gallium(III)phthalocyanines (4-6) which are non-peripherally tetra-substituted with anisole or thioanisolefunctional groups containing oxygen or sulfur bridge. Confirmation of the phthalocyaninestructures performed with the cooperation of elemental analysis, FTIR, 1H-NMR, UV-Vis andMALDI-MS spectral data. Also, we have investigated and discussed the effects of nonperipherallytetra-substitution with different functional groups on the photochemical andphotophysical properties (singlet oxygen quantum yield, photodegradation quantum yield,fluorescence quantum yield and fluorescent behavior). In every substituent, we obtained verysimilar singlet oxygen quantum yields as 0.64 for (4), 0.56 for (5) and 0.65 for (6) suggestingtheir potential as photosensitizer in PDT treatment.