FunctionalLayers for ZnIIIon Detection:From Molecular Design to Optical Fiber Sensors.

We report on the synthesis of a novelperylene monoimide derivativethat shows high response and selectivity for zinc ion detection. Thecomplexation of Zn2+by the dye is followed by FD-MS, 1H NMR, UV–vis spectroscopy, and isothermal titrationcalorimetry. Quantum chemical calculations are performed to gain furtherinsight into the electronic processes responsible for the spectroscopicchanges observed upon complexation. Finally, the perylene dye is incorporatedin a sol–gel silica layer coated on optical fibers that arethen used for Zn2+detection in aqueous solution. [ABSTRACT FROM AUTHOR]