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https://hdl.handle.net/1822/7846
Título: | Synthesis of tricyanovinyl-substituted thienylpyrroles and characterization of the solvatochromic, electrochemical and non-linear optical properties |
Autor(es): | Raposo, M. Manuela M. Sousa, Ana M. R. C. Kirsch, G. Ferreira, F. Belsley, M. Gomes, E. Matos Fonseca, A. Maurício C. |
Palavras-chave: | Pyrroles Thiophenes Donor-acceptor thienylpyrroles Tricyanovinylation Chromophores Solvatochromism Electrochemistry Hyper-Rayleigh scattering (HRS) Non-linear optical (NLO) material chromephores |
Data: | 2005 |
Editora: | Elsevier 1 |
Revista: | Tetrahedron |
Citação: | "Tetrahedron". ISSN 0040-4020. 61:50 (Dec. 2005) 11991-11998. |
Resumo(s): | Tricyanovinyl-substituted 1-(alkyl)aryl-2-(2´-thienyl)pyrroles 1 have been synthesized by direct tricyanovinylation reaction of 1-(alkyl)aryl-2-(2´-thienyl)pyrroles 2 using TCNE. The tricyanovinyl- derivatives 1 display dramatic reductions in both their optical and electrochemical band gaps relative to thienylpyrrole precursors 2. The solvatochromic behavior of compounds 1 was investigated in a variety of solvents. Hyper-Rayleigh scattering was used to measure the first hyperpolarizabilities β of the mentioned compounds. The β values show that the new compounds prepared could be used on the manufacture of materials with good non-linear (NLO) properties. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/7846 |
DOI: | 10.1016/j.tet.2005.09.062 |
ISSN: | 0040-4020 |
Versão da editora: | http://www.sciencedirect.com/science/journal/00404020 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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manuscript.pdf | Documento principal | 269,77 kB | Adobe PDF | Ver/Abrir |