García Arroyo, PalomaGala Sánchez, ElenaMartínez‐Fernández, MarcosSalagre, ElenaMartínez, José I.Michel, Enrique G.Segura Castedo, José Luis2024-06-102024-06-102024P. García-Arroyo, E. Gala, M. Martínez-Fernández, E. Salagre, J. I. Martínez, E. G. Michel, J. L. Segura, Turn-On Solid-State Fluorescent Determination of Zinc Ion by Quinoline-Based Covalent Organic Framework. Macromol. Rapid Commun. 2024, 2400134. https://doi.org/10.1002/marc.2024001341022-13361521-392710.1002/marc.202400134https://hdl.handle.net/20.500.14352/104811A 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.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal articlehttps://doi.org/10.1002/marc.202400134open access547COFZnCiencias23 Química