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|Title:||Synthesis and photophysical characterization of heterocyclic azines and the corresponding copper complexes as versatile compounds for optical applications|
|Author(s):||Raposo, M. Manuela M.|
Batista, Rosa Maria Ferreira
Costa, Susana P. G.
Neves, Isabel C.
Fonseca, António M.
|Abstract(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 . 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 . 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).|
|Access:||Restricted access (UMinho)|
|Appears in Collections:||CDQuim - Comunicações e Proceedings|
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