TY - JOUR
T1 - Synthesis and photophysical properties of dansyl-based polyamine ligands and their Zn(II) complexes
AU - Parola, António Jorge Dias
AU - Lima, João Carlos dos Santos Silva E Pereira de
AU - Pina, Fernando Jorge da Silva
PY - 2007/1/1
Y1 - 2007/1/1
N2 - 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. (c) 2006 Elsevier B.V. All rights reserved.
AB - 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. (c) 2006 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.ica.2006.11.006
DO - 10.1016/j.ica.2006.11.006
M3 - Article
VL - 360
SP - 1200
EP - 1208
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
SN - 0020-1693
IS - 3
ER -