%0 Journal Article
%A García Arroyo, Paloma
%A Gala Sánchez, Elena
%A Martínez‐Fernández, Marcos
%A Salagre, Elena 
%A Martínez, José I. 
%A Michel, Enrique G. 
%A Segura Castedo, José Luis
%T Turn‐On Solid‐State Fluorescent Determination of Zinc Ion by Quinoline‐Based Covalent Organic Framework
%D 2024
%@ 1022-1336
%@ 1521-3927
%U https://hdl.handle.net/20.500.14352/104811
%X A new quinoline‐based COF (covalent organic framework), obtained by Povarov reaction, containing 2,6‐diisopropylphenyl moieties as substituents over the heterocyclic ring is described for detecting Zn2+ in aqueous solution. The introduction of the mentioned bulky phenyl rings into the network favors an increase of the distance between the reticular sheets and their arrangement, obtaining a new material with an alternating AB type stacking. The new material exhibits good selectivity to detect Zn2+ by fluorescence emission in aqueous solutions up to a concentration of 1.2 × 10−4 mof the metal ion. In order to have a deeper insight into the interaction between the COF and the zinc cation, a thorough spectroscopical, microscopical, and theoretical study is also presented and discussed in this communication.
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