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- Title
Synthesis and Spectral Evaluation of Some Unsymmetrical Mesoporphyrinic Complexes.
- Authors
Boscencu, Rica; Oliveira, Anabela Sousa; Ferreira, Diana P.; Vieira Ferreira, Luís Filipe
- Abstract
Synthesis and spectral evaluation of new zinc and copper unsymmetrical mesoporphyrinic complexes are reported. Zn(II)-5-(4-acetoxy-3-methoxyphenyl)-10,15,20- tris-(4-carboxymethylphenyl)porphyrin, Zn(II)-5-[(3,4-methylenedioxy)phenyl]-10,15,20- tris-(4-carboxymethylphenyl)porphyrin, Cu(II)-5-(4-acetoxy-3-methoxyphenyl)-10,15,20- tris-(4-carboxymethylphenyl)porphyrin and Cu(II)-5-[(3,4-methylenedioxy)phenyl]-10,15,20- tris-(4-carboxymethylphenyl)porphyrin were synthesized using microwave-assisted synthesis. The complexes were characterized by elemental analysis, FT-IR, UV-Vis, EPR and NMR spectroscopy, which fully confirmed their structure. The spectral absorption properties of the porphyrinic complexes were studied in solvents with different polarities. Fluorescence emission and singlet oxygen formation quantum yields were evaluated for the compounds under study, revealing high yields for the zinc derivatives. The copper complexes are not emissive and only display residual capacity for singlet oxygen formation.
- Subjects
METALLOPORPHYRINS; METAL complexes; SYMMETRY (Physics); PORPHYRIN synthesis; MICROWAVES; CHEMICAL synthesis; REACTIVE oxygen species
- Publication
International Journal of Molecular Sciences, 2012, Vol 13, Issue 7, p8112
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms13078112