Supramolecular Conformational Effects in the Electrocatalytic Properties of Electrostatic Assembled Films of Meso(3- and 4-Pyridyl) Isomers of Tetraruthenated Porphyrins
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| Formato: | Artículo científico |
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Sociedad Química de México
2005
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| _version_ | 1876422254065090560 |
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| author | Ildemar Mayer |
| author_facet | Ildemar Mayer |
| contents | Supramolecular Conformational Effects in the Electrocatalytic Properties of Electrostatic Assembled Films of Meso(3- and 4-Pyridyl) Isomers of Tetraruthenated Porphyrins Ildemar Mayer Marcos N. Eberlin Daniela M. Tomazela Henrique E. Toma Koiti Araki Multidisciplinaria (Ciencias Naturales y Exactas) electrocatalysis electrochemistry metalloporphyrins mass spectrometry supramolecular chemistry Meso(3- and 4-pyridyl)porphyrins coordinated to four [Ru(bipy)2Cl]+ complexes, M(3-TRPyP)or M(4-TRPyP), where M=2H+ and Zn2+, have been obtained and characterized by electrochemistry,spectroscopy and mass spectrometry. Layer-by-layer electrostatic assembled films with tetrasulfonatedphthalocyaninatecuprate(II) anion, CuTSPc, displayed distinct electrocatalytic activity towards sulfiteand nitrite oxidation. In general, the films derived from the M(4-TRPyP) isomers are more effectivefor the oxidation of nitrite, whereas those containing the M(3-TRPyP) isomers are more efficient forthe oxidation of sulfite. The results demonstrated the influence of molecular geometry on the activesites of porphyrinic nanomaterials, enhancing the electron-transfer process in the M(3-TRPyP)derivative. This effect results from changes in the chemical environment around the active sites,induced by the contrasting molecular packing interactions with CuTSPc. 2005 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47549216 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.2 Vol.49 |
| format | Artículo científico |
| id | redalyc_47549216 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Sociedad Química de México |
| spellingShingle | Supramolecular Conformational Effects in the Electrocatalytic Properties of Electrostatic Assembled Films of Meso(3- and 4-Pyridyl) Isomers of Tetraruthenated Porphyrins Ildemar Mayer Multidisciplinaria (Ciencias Naturales y Exactas) electrocatalysis electrochemistry metalloporphyrins mass spectrometry supramolecular chemistry Supramolecular Conformational Effects in the Electrocatalytic Properties of Electrostatic Assembled Films of Meso(3- and 4-Pyridyl) Isomers of Tetraruthenated Porphyrins Ildemar Mayer Marcos N. Eberlin Daniela M. Tomazela Henrique E. Toma Koiti Araki Multidisciplinaria (Ciencias Naturales y Exactas) electrocatalysis electrochemistry metalloporphyrins mass spectrometry supramolecular chemistry Meso(3- and 4-pyridyl)porphyrins coordinated to four [Ru(bipy)2Cl]+ complexes, M(3-TRPyP)or M(4-TRPyP), where M=2H+ and Zn2+, have been obtained and characterized by electrochemistry,spectroscopy and mass spectrometry. Layer-by-layer electrostatic assembled films with tetrasulfonatedphthalocyaninatecuprate(II) anion, CuTSPc, displayed distinct electrocatalytic activity towards sulfiteand nitrite oxidation. In general, the films derived from the M(4-TRPyP) isomers are more effectivefor the oxidation of nitrite, whereas those containing the M(3-TRPyP) isomers are more efficient forthe oxidation of sulfite. The results demonstrated the influence of molecular geometry on the activesites of porphyrinic nanomaterials, enhancing the electron-transfer process in the M(3-TRPyP)derivative. This effect results from changes in the chemical environment around the active sites,induced by the contrasting molecular packing interactions with CuTSPc. 2005 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47549216 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.2 Vol.49 |
| title | Supramolecular Conformational Effects in the Electrocatalytic Properties of Electrostatic Assembled Films of Meso(3- and 4-Pyridyl) Isomers of Tetraruthenated Porphyrins |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) electrocatalysis electrochemistry metalloporphyrins mass spectrometry supramolecular chemistry |
| url | https://www.redalyc.org/articulo.oa?id=47549216 |