Coumarinic fluorescent chemosensors for the detection of transition metal ions.
Fluoroionophores consisting of coumarin-153 linked to mono- and diaza-crown ethers are able to complex transition metal cations (Ni(2+), Zn(2+), Cd(2+)) and Pb(2+), with concomitant large changes in photophysical properties. The stability constants in acetonitrile are higher than 3×10(6) M (-1) except for Ni(2+).
Laboratoire de Chimie Générale (CNRS ER77), Conservatoire National des Arts et Métiers, 292 rue Saint Martin, 75003, Paris, France.
J
J
Bourson
F
F
Badaoui
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B
Valeur