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  • Title: A highly selective colorimetric and ratiometric two-photon fluorescent probe for fluoride ion detection.
    Author: Zhang JF, Lim CS, Bhuniya S, Cho BR, Kim JS.
    Journal: Org Lett; 2011 Mar 04; 13(5):1190-3. PubMed ID: 21299199.
    Abstract:
    A naphthalimide-based highly selective colorimetric and ratiometric fluorescent probe for the fluoride ion displayed both one- and two-photon ratiometric changes. Upon reaction with the F(-) (TBA(+) and Na(+) salts) anion in CH(3)CN as well as in aqueous buffer solution, probe 1 shows dramatic color changes from colorless to jade-green and remarkable ratiometric fluorescence enhancements signals. These properties are mechanistically ascribed to a fluoride-triggered Si-O bond cleavage that resulted in a green fluorescent 4-amino-1,8-naphthalimide.
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