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Synthesis and photophysical properties of dansyl-based polyamine ligands and th...
Parola, A. Jorge; Lima, João Carlos; Pina, Fernando; Pina, João; Melo, João Seixas de; Soriano, Conxa; García-España, Enrique; Aucejo, RicardoThe 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 Z...
A New ZnIITweezer Pyridine-Naphthalene System - An Off-On-Off System Working in...
Aucejo, Ricardo; Alarcón, Javier; García-España, Enrique; Llinares, José M.; Marchin, Katherine L.; Soriano, Conxa; Lodeiro, CarlosThe synthesis, protonation behaviour and Zn2+ coordination chemistry of a new photoactive polyamine exhibiting ldquooff-on-offrdquo fluorescence is presented. Addition of Zn2+ reduces the width of the fluorescence window, which is centred around physiological pH, and sharply enhances the emission intensity. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005) ; http://dx.doi.org/10.1002/ejic.2...
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