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Title: Synthesis and photophysical properties of dansyl-based polyamine ligands and their Zn(II) complexes
Authors: Parola, A. Jorge 
Lima, João Carlos 
Pina, Fernando 
Pina, João 
Melo, João Seixas de 
Soriano, Conxa 
García-España, Enrique 
Aucejo, Ricardo 
Alarcón, Javier 
Keywords: Polyamine ligands; Pyridine ligands; Zn(II) complexes; Chemosensors; Fluorescence
Issue Date: 2007
Citation: Inorganica Chimica Acta. 360:3 (2007) 1200-1208
Abstract: The synthesis, potentiometric studies and photophysical properties of two new polyamine ligands (L1 and L2) possessing the dansyl chromophore were studied in aqueous 0.15 M NaCl. The compounds show the absorption and emissions bands characteristic of the dansylamide fluorophore and both present intramolecular excited state proton transfer at intermediate pH ranges. One of the ligands (L2) strongly coordinates Zn(II) leading to fluorescence quenching. A model compound (L3) of the dansyl moiety was also investigated.
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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