Autor(es):
Monteiro, Carlos J. P. 
; Pereira, Mariette M. ; Azenha, M. Emilia ; Burrows, Hugh D. ; Serpa, Carlos ; Arnaut, Luís G. ; Tapia, M. J. ; Sarakha, Mohamed ; Wong-Wah-Chung, Pascal ; Navaratnam, Suppiah
Data: 2005
Identificador Persistente: http://hdl.handle.net/10316/10731
Origem: Estudo Geral - Universidade de Coimbra
Descrição
5,10,15,20-Tetrakis(2,6-dichloro-3-chlorosulfophenyl)porphyrin and its tin and zinc complexes were synthesized with high yields and fully characterized. The corresponding water-soluble 5,10,15,20-tetrakis(2,6-dichloro-3-sulfophenyl)porphyrins were obtained by hydrolysis with water. An extensive photophysical study of the new water soluble porphyrinic compounds was carried out including absorption and fluorescence spectra, fluorescence quantum yields, triplet absorption spectra, triplet lifetimes, triplet and singlet oxygen quantum yields. These sensitizers were successfully used in the photodegradation of 4-chlorophenol and 2,6-dimethylphenol. A comparison is made of their efficiencies, and some mechanistic considerations are highlighted. http://dx.doi.org/10.1039/b507597a FCT; FEDER; POCTI; Universidad de Burgos; GRICES–CNRS; European Commission (HPRI-CT-2002-00183).
