Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/64867
Título: | Electrochemical and spectroscopic studies of pyridazine derivatives |
Autor(es): | Vieira, L. M .C. Fonseca, A. M. Raposo, M. Manuela M. Kirsch, G |
Palavras-chave: | Synthesis Pyridazines Electrochemistry push-pull pi-congugated molecules UV-Vis spectroscopy |
Data: | 2004 |
Editora: | Sociedade Portuguesa de Electroquímica |
Revista: | Portugaliae Electrochimica Acta |
Citação: | Vieira, L. M .C.; Fonseca, A. M.; Raposo, M. M. M.; Kirsch, G. Electrochemical and spectroscopic studies of pyridazine derivatives. Portugaliae Electrochimica Acta, 2004, 22(1), 11-18. |
Resumo(s): | This work reports on cyclic voltammetry and spectroscopic UV-Vis investigations of some pyridazine derivatives 1-8 in dimethylformamide. In the electrochemical study, monochlorinated pyridazines 2-8 exhibit two reductions but in the case of dichlorinated derivative 1 an additional wave is seen for the reduction of the second carbon-chloride bond. The electronic absorption spectra display an intramolecular charge transfer band π-π* in the UV region of which depend substantially on the nature of both donor and acceptor moieties. These results indicate the π-electron delocalization in the conjugated system. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/64867 |
ISSN: | 1574-0404 |
Versão da editora: | http://www.scielo.mec.pt/pdf/pea/v22n1/22n1a02.pdf |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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port elec acta 2004.pdf | Manuscript | 194,27 kB | Adobe PDF | Ver/Abrir |