Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/15118
Título: | Imidazo-benzo-15-crown-5 ether bearing arylthienyl and bithienyl moieties as novel fluorescent chemosensors for Pd2+ and Cu2+ |
Autor(es): | Batista, Rosa Maria Ferreira Oliveira, Elisabete Costa, Susana P. G. Lodeiro, Carlos Raposo, M. Manuela M. |
Palavras-chave: | Crown ethers Arylthiophene Bithiophene Imidazole Fluorescent chemosensors CHEQ effect Pd2+ Cu2+ F- |
Data: | 2011 |
Editora: | Elsevier 1 |
Revista: | Tetrahedron |
Resumo(s): | Novel fluorescent ionophores bearing imidazo-arylthienyl or imidazo-bithienyl pi-conjugated bridges functionalized with one or two fused benzo-15-crown-5 ethers as receptor units are reported. The sensing ability of the compounds in the presence of metallic cations (Li+, Na+, K+, Ca2+, Zn2+, Cu2+, Ni2+, Pd2+ and Hg2+) and fluoride ion was studied in MeCN/DMSO solutions by absorption and emission spectroscopy. The experimental results indicate that all compounds could act as selective fluorimetric sensors for Cu2+ and Pd2+ and also for the fluoride ion, in the case of the bis-substituted crown ether derivatives. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/15118 |
DOI: | 10.1016/j.tet.2011.06.106 |
ISSN: | 0040-4020 |
Versão da editora: | http://www.sciencedirect.com/ |
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 | 1,26 MB | Adobe PDF | Ver/Abrir |