{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T14:29:08Z","timestamp":1761488948482,"version":"build-2065373602"},"reference-count":45,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2012,6,29]],"date-time":"2012-06-29T00:00:00Z","timestamp":1340928000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/ijms13078112","type":"journal-article","created":{"date-parts":[[2012,6,29]],"date-time":"2012-06-29T11:05:28Z","timestamp":1340967928000},"page":"8112-8125","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Synthesis and Spectral Evaluation of Some Unsymmetrical Mesoporphyrinic Complexes"],"prefix":"10.3390","volume":"13","author":[{"given":"Rica","family":"Boscencu","sequence":"first","affiliation":[{"name":"Faculty of Pharmacy, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 6 Traian Vuia St., Bucharest 020956, Romania"}]},{"given":"Anabela Sousa","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Molecular Physical Chemistry Center, IN\u2014Institute of Nanoscience and Nanotechnology, Technical University of Lisbon, Av. Rovisco Pais, Lisbon 1049-001, Portugal"},{"name":"School of Technology and Business, Polytechnic Institute of Portalegre, Lugar da Abadessa, Apartado 148, Portalegre 7301-901, Portugal"}]},{"given":"Diana P.","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Molecular Physical Chemistry Center, IN\u2014Institute of Nanoscience and Nanotechnology, Technical University of Lisbon, Av. Rovisco Pais, Lisbon 1049-001, Portugal"}]},{"given":"Lu\u00eds Filipe Vieira","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Molecular Physical Chemistry Center, IN\u2014Institute of Nanoscience and Nanotechnology, Technical University of Lisbon, Av. Rovisco Pais, Lisbon 1049-001, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2012,6,29]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"What porphyrins are and what they do","volume":"1","author":"Milgrom","year":"1977","journal-title":"The Colours of Life: An Introduction to the Chemistry of Porphyrins and Related Compounds"},{"key":"ref_2","first-page":"329","article-title":"Porphyrins","volume":"8","year":"1993","journal-title":"The Chemistry of Natural Products"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"3897","DOI":"10.1021\/jm040074b","article-title":"Current clinical and preclinical photosensitizers for use in photodynamic therapy","volume":"47","author":"Detty","year":"2004","journal-title":"J. Med. 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