Porphyrins Encapsulated into Pluronic F127 Micelles: Evaluating the Effect of the Central Metal and Substituents on the Photophysicochemical Properties in Water

Muthumuni Managa and Tebello Nyokong^@

Dedicated to professor Aslan Yu. Tsivadze on the occasion of his Birthday

Centre for Nanotechnology Innovation, Department of Chemistry, Rhodes University, 6140 Grahamstown, South Africa

^@Corresponding author E-mail: t.nyokong@ru.ac.za

DOI: 10.6060/mhc171141n

Macroheterocycles 2017 10(4-5) 467-473

Metal free 5-(4-carboxyphenyl)-10,15,20-tris(phenyl)porphyrin (1-H₂) and its ClGa derivative (1-ClGa), as well as metal free 5-(4-(4-carboxyphenoxy)phenyl)-10,15,20-tris(phenyl)porphyrin (2-H₂) and its ClGa (2-ClGa), Zn (2-Zn)

and Cl₂Si (2-Cl₂Si) derivatives were encapsulated into Pluronic F127 micelles to form 1-H₂+F127, 2-H₂+F127, 2-ClGa+F127, 2-Zn+F127 and 2-Cl₂Si+F127. The fluorescence and singlet oxygen generating behaviour of the porphyrins were also investigated. The Stern-Volmer constant (K_sv) for 2-Zn+F127 was the highest compared to other porphyrin derivatives..

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Porphyrins Encapsulated into Pluronic F127 Micelles: Evaluating the Effect of the Central Metal and Substituents on the Photophysicochemical Properties in Water

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