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Although this element is beneficial in controlled doses, it menaces human health because it can attack tooth enamel in high concentrations. Our research group has developed a selective chemosensor for fluoride ions based on a naphthylimide derivative. This study employed a multifaceted approach involving ultraviolet-visible (UV\u2013vis), fluorescence, and NMR spectroscopic techniques, complemented by theoretical calculations, to elucidate the interaction. The employment of UV\u2013vis methods revealed a K11 value of 2.0 \u00d7 104 mol dm\u20133 for the chemosensor, indicating its notable stability toward fluoride. A critical aspect of the probe\u2019s functionality is its anion\u2212\u03c0 interaction mechanism with the analyte, a finding substantiated by 1H NMR titrations. These titrations demonstrated that the primary interaction occurred with the aromatic rings of the benzene moiety rather than with the N\u2013H group. Theoretical calculations corroborate these findings and highlight the viability of anion\u2212\u03c0 interactions. This chemosensor boasts numerous advantages, including cost-effectiveness, ease of use, and high selectivity for fluoride. Consequently, they have emerged as promising tools for environmental and analytical applications.<\/jats:p>","DOI":"10.1021\/acsomega.5c02699","type":"journal-article","created":{"date-parts":[[2025,7,10]],"date-time":"2025-07-10T14:33:57Z","timestamp":1752158037000},"page":"30684-30694","source":"Crossref","is-referenced-by-count":2,"title":["Naphthylimide Chemosensor\nBased on Anion\u2212\u03c0\nInteractions: A Promising Tool for Environmental Monitoring"],"prefix":"10.1021","volume":"10","author":[{"given":"Janail\nRodrigues","family":"da Silva","sequence":"first","affiliation":[{"name":"Universidade Federal de Sa\u0303o Paulo , , Rua Prof. Arthur Riedel, 275 , , ,","place":["Diadema, SP, Brazil, CEP 09972-270"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vinicius Flores","family":"da Silva","sequence":"additional","affiliation":[{"name":"Universidade Federal de Sa\u0303o Paulo , , Rua Prof. Arthur Riedel, 275 , , ,","place":["Diadema, SP, Brazil, CEP 09972-270"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2904-5993","authenticated-orcid":true,"given":"Willyan Farias","family":"Oliveira","sequence":"additional","affiliation":[{"name":"UFS , , , ,","place":["Sa\u0303o Cristo\u0301va\u0303o, SE, Brazil, 49107-230"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ricardo Oliveira","family":"Freire","sequence":"additional","affiliation":[{"name":"UFS , , , ,","place":["Sa\u0303o Cristo\u0301va\u0303o, SE, Brazil, 49107-230"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joa\u0303o","family":"Honorato de Araujo-Neto","sequence":"additional","affiliation":[{"name":"University of Sa\u0303o Paulo , , , ,","place":["Sa\u0303o Paulo, SP, Brazil, 05508-000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3957-2730","authenticated-orcid":true,"given":"Izilda A.","family":"Bagatin","sequence":"additional","affiliation":[{"name":"Universidade Federal de Sa\u0303o Paulo , , Rua Prof. Arthur Riedel, 275 , , ,","place":["Diadema, SP, Brazil, CEP 09972-270"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2025,7,10]]},"reference":[{"key":"2026081812221790500_cit1","doi-asserted-by":"publisher","first-page":"2134","DOI":"10.1590\/S0100-40422008000800038","article-title":"Quimiossensores cromoge\u0302nicos e fluoroge\u0302nicos\npara a detecc\u0327a\u0303o de analitos anio\u0302nicos","volume":"31","author":"Zimmermann-Dimer","year":"2008","journal-title":"Quim. 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