Журнал "Макрогетероциклы"

Valerii F. Traven,^a@1 Nuno M. M. Moura,^b@2 Svetlana B. Scachkova,^a M. Amparo F. Faustino,^b El Mostapha Rakib,^c José A. S. Cavaleiro,^b Sergei M. Dolotov,^a Ivan V. Ivanov,^a Dmitrii A. Cheptsov,^a and M. Graça P. M. S. Neves^b

^aD.I. Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russian Federation

^bQOPNA and LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal

^cLaboratory of Organic and Analytic Chemistry, Faculty of Sciences and Technics, Sultan Moulay Slimane University BP 523, 2300 Beni-Mellal, Morocco

^@1Corresponding author E-mail: valerii.traven@gmail.com

^@2Corresponding author E-mail: nmoura@ua.pt

DOI: 10.6060/mhc191175t

Macroheterocycles 2019 12(4) 356-363

The interaction of free-bases and Zn(II) complexes of meso-tetraphenylporphyrin, and its β-functionalized derivatives with photogenerators of acidity (PGAs, hexachloroethane or tribromoethanol) has been studied in toluene and also embedded in polymer films. The free-bases undergo fast reversible protonation during the irradiation procedure. The photoprotonation of free-bases by PGAs is accompanied by the fluorescence decay of each porphyrin substrate. The relative rates of such photoprotonation of free-base porphyrins depend to a certain extent on the porphyrin structure. The similar protonation and the fluorescence decay of the meso-tetraphenylporphyrin derivatives in the presence of PGAs also take place in a polymer film. The related Zn(II) complexes undergo photolysis under the conditions used with the fluorescence decay as well. The protonation and sharp fluorescence decay of meso-tetraphenylporphyrin derivatives during their irradiation can find application in photosensory technologies, information optical recording and antibacterial phototherapy.