Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/32039
Título: | Synthesis and photophysical characterization of heterocyclic azines and the corresponding copper complexes as versatile compounds for optical applications |
Autor(es): | Raposo, M. Manuela M. Batista, Rosa Maria Ferreira Kuzniarska-Biernacka, Iwona Costa, Susana P. G. Neves, Isabel C. Fonseca, António M. |
Palavras-chave: | Azines Heterocycles Thiophene Pyrrole Furan Chemosensors UV-visible spectroscopy Synthesis |
Data: | 2014 |
Resumo(s): | The current interest in azine derivatives arises from their wide range of applications in diverse areas such as material and environmental sciences, biomedical, analytical, supramolecular chemistry and catalysis [1-3]. Azine ligands bearing N, O and S heteroatoms in their structure should exhibit improved coordination ability [4]. Moreover, the Cu(II) complexes with organic ligands, containing nitrogen and/or oxygen donor atoms, are catalytically active in phenol oxidation reaction in order to enhance the organic pollutants into the valuable pharmaceuticals products as a sustainable solution to environmental problems [5]. Bearing these facts in mind, azine ligands containing heterocycles such as thiophene L1, pyrrole L2 and furan L3, as well as the corresponding Cu(II) complexes C1-C3 were synthesized and characterized. In this communication, we present the synthesis and photophysical characterization for all compounds (L1-L3 and C1-C3) in selected organic solvents by UV–Vis absorption and fluorescence spectroscopy, as well as the cation chemosensory study for ligands L1-L3 which exhibit selective and sensitive colorimetric response in the presence of Cu(II) (colourless to reddish for L2 or colourless to yellow for L3). |
Tipo: | Resumo em ata de conferência |
URI: | https://hdl.handle.net/1822/32039 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDQuim - Comunicações e Proceedings |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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P 220.pdf Acesso restrito! | Documento principal | 204,48 kB | Adobe PDF | Ver/Abrir |