Photophysical, photochemical properties of chalcone substituted Zinc(II) and Magnesium(II) metallophthalocyanines bearing thiophene units

Peripherally, non-peripherally and axially pyrazoline-fused phthalocyanines: synthesis, aggregation behaviour, fluorescence, singlet oxygen generation, and photodegradation studies

“…In the FT-IR spectrum, the disappearance of the -OH stretching vibration (3305 cm À1 ) and the observation of the CRN stretching vibration (2231 cm À1 ) is the most important factor indicating the formation of the phthalonitrile compound. In the 1 H NMR and 13 C NMR spectra, characteristic peaks of ring closure of this compound were observed at 5.21 ppm (pyrazoline-CH), 5.05 and 3.75 ppm (pyrazoline-CH 2 ), 55.3 ppm (pyrazoline-CH) and 43.2 ppm (pyrazoline-CH 2 ), respectively (Fig. S1 and S2, ESI †).…”

“…Phthalocyanines (Pcs) are second-generation photosensitizers and widely used photosensitizing agents for PDT due to their ideal properties, such as low toxicity in the dark, strong absorption in the therapeutic region of PDT, high stability, biocompatibility, and high singlet oxygen quantum yields for efficient ROS generation. [9][10][11][12][13][14][15][16] In addition, these compounds are used in many modern application areas, such as electrochemistry, photocatalysis, anticancer drugs, and solar cells. [17][18][19][20] The nature of the metal ion in the center of the phthalocyanine ring, the substituents attached to the ring, and the binding positions of the substituents significantly affect the photophysical and photochemical properties of the compounds (Fig.…”

Novel non-peripheral mercaptopyridine-substituted mono- and double-decker lutetium(iii) phthalocyanines: synthesis, photophysicochemical and electrochemical properties

“…9 Pc derivatives are promising photosensitizers (PSs) employed in PDT because of their potent red-region absorption and singlet oxygen production properties. 10 Substituted groups and central metals play important roles in solubility, cellular uptake, subcellular localization, and phototoxicity of Pcs. 11 The cavity of the Pc ring can be filled with different kinds of metal ions.…”