The synthesis and photophysicochemical behaviour of novel water-soluble cationic indium(III) phthalocyanine |
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| Authors: | Mahmut Durmuş Ali Erdoğmuş Abimbola Ogunsipe Tebello Nyokong |
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| Affiliation: | 1. Gebze Institute of Technology, Department of Chemistry, P.O. Box 141, Gebze 41400, Turkey;2. Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa;3. Y?ld?z Technical University, Faculty of Arts and Science, Department of Chemistry, 34210 Esenler, Istanbul, Turkey;4. Department of Chemistry, University of Lagos, Lagos, Nigeria;1. Centre for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa;2. Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, Japan;1. Gebze Technical University, Department of Chemistry, Gebze, 41400, Kocaeli, Turkey;2. University of Carthage, Faculty of Science of Bizert, Tunisia;3. Department of Basic Pharmaceutical Sciences, Analytical Chemistry Division, Faculty of Pharmacy, Sivas Cumhuriyet University, 58140, Sivas, Turkey;4. Department of Molecular Biology and Genetics, Faculty of Science, Sivas Cumhuriyet University, 58140, Sivas, Turkey;5. Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia;1. Macka Vocational School, Karadeniz Technical University, 61750, Macka, Trabzon, Turkey;2. Gebze Technical University, Department of Chemistry, Gebze, 41400, Kocaeli, Turkey;3. Department of Chemistry, Karadeniz Technical University, 61080, Trabzon, Turkey;1. Department of Chemistry, Sakarya University, TR54187 Serdivan, Sakarya, Turkey;2. Department of Chemistry, Y?ld?z Technical University, TR34210 Esenler, Istanbul, Turkey |
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| Abstract: | The syntheses and characterization of 2,3-octakis-(3-pyridyloxyphthalocyaninato) indium(III) and quaternized 2,3-octakis-(3-pyridyloxyphthalocyaninato) indium(III) are described. The ground state electronic absorption spectra, photophysics and photochemistry of both dyes in DMSO as well as that of the quaternized compound in aqueous solution are also presented. A comparison of the photophysical and photochemical parameters of the two dyes revealed that quaternized 2,3-octakis-(3-pyridyloxyphthalocyaninato) indium(III) was a better photosensitizer than its unquaternized counterpart. The quantum yield values of fluorescence (ΦF), triplet state formation (ΦT) and singlet oxygen formation (ΦΔ) for the cationic dye were found to be 0.03, 0.68 and 0.66 respectively in DMSO; these values were higher than those for 2,3-octakis-(3-pyridyloxyphthalocyaninato) indium(III), which exhibited values of 0.02, 0.66 and 0.63, respectively in DMSO. The values for the cationic dye in aq. solution were 0.02, 0.59 and 0.56 respectively, suggesting that the water-soluble quaternized 2,3-octakis-(3-pyridyloxyphthalocyaninato) indium(III) offers potential as a photosensitizer in photodynamic therapy treatment. |
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