Some Properties of an Unmetalled phthalocyanine Obtained by Chance at Low Temperature

Year 2020, Volume: 7 Issue: 3, 875 - 882, 30.10.2020

Mevlude Canlica

https://doi.org/10.18596/jotcsa.807291

Abstract

A novel tetrasubstituted metal-free phthalocyanine bearing phthalonitrile groups on the peripheral positions was synthesized accidentally by the cyclotetramerization reaction of the 4,4’-(1,3-phenylenebis(oxy))diphthalonitrile. For photodynamic therapy (PDT) application was described photophysical properties including fluorescence quantum yield (ΦF), fluorescence lifetime (τF), triplet state lifetime (τT) and triplet quantum yield (ΦT) and photochemical properties including singlet oxygen quantum yield (Φf) and photodegradation quantum yield (Φd) as well as magnetic circular dichroism (MCD) properties. The ΦT of phthalocyanine compound value was found 0.81. The obtained lifetime (τT) was 40 μs for metal-free Pc.

Keywords

Metal-free phthalocyanine, magnetic circular dichrosim, singlet oxygen quantum yield, magnetic circular dichroism

Supporting Institution

Research Fund of the Yildiz Technical University

Project Number

Project No: 2012-01-02-KAP12

Thanks

This work was supported by the Tubitak-BİDEB-2219 International Postdoctoral Research Scholarship Programme, Applying Number: 1059B191401081 and the Research Fund of the Yildiz Technical University (Project No: 2012-01-02-KAP12). The author is thankful to thank Prof. Kenneth K. Suslick and Prof. Tebello Nyokong for providing me the grant and the facilities in the lab during the research.

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