Organização supramolecular da ftalocianina de cobalto(II) e seu efeito na oxidação do aminoácido cisteína Supramolecular organization of cobalt (II) phthalocyanine on the pathway of cysteine oxidation
| Autor: | Amanda Costa Santos, Roberto A. Sousa Luz, Luana G. França Ferreira, José Ribeiro dos Santos Júnior, Welter Cantanhêde da Silva, Frank Nelson Crespilho |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 33, Iss 3, Pp 539-546 (2010) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| DOI: | 10.1590/S0100-40422010000300009 |
| Popis: | The interest in the chemistry of cobalt (II) tetrasulfonated phthalocyanine (PcTsCo) comes mainly from its macrocycle-ligand structure combined with their special chemical characteristics, such as high solubility, well-defined redox reactions and remarkable optical absorption in the visible region. In this work, we use layer-by-layer technique in order to assemble CoTsPc and poly(allylaminehydrochloride) (PAH) in hybrid supramolecular system. The electronic spectroscopy and cyclic voltammetry techniques were utilized to study PAH/CoTsPc multilayers growth and the cysteine catalytic oxidation. PAH/CoTsPc showed high electrochemical stability and worthwhile to mention is the remarkable influence of supramolecular arrangement on the final redox properties of the system. |
| Databáze: | Directory of Open Access Journals |
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