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• W2024391337 startingPage "193" @default.
• W2024391337 abstract "A series of N-acylhydrazones were synthesised and found to be turn-on fluorescent chemodosimeters for Cu(2+). Among the tested transition metal ions such as Cu(2+), Pb(2+), Zn(2+), Cd(2+), Hg(2+), and Ni(2+), a prominent fluorescence enhancement of up to 1000-fold was only observed for Cu(2+) in acetonitrile (CH(3)CN). This was indicated by an onset of unprecedented structured emission. Detailed experiments established that the highly Cu(2+) selective fluorescence enhancement resulted from an oxidative cyclization by Cu(2+)of the originally nonfluorescent N-acylhydrazones into highly fluorescent rigid 1,3,4-oxadiazoles, n-dope type blocks in optoelectronic materials. The chemodosimeters can be applied to sense Cu(2+) at nM levels in CH(3)CN and sub-microM levels in neutral aqueous environments, despite a slower response in the latter case. It is expected that these redox-based chemodosimeters might be of general applicability." @default.
• W2024391337 created "2016-06-24" @default.
• W2024391337 creator A5004017272 @default.
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• W2024391337 creator A5059201544 @default.
• W2024391337 creator A5070806717 @default.
• W2024391337 creator A5090855321 @default.
• W2024391337 date "2009-01-01" @default.
• W2024391337 modified "2023-10-16" @default.
• W2024391337 title "Oxidative cyclization of N-acylhydrazones. Development of highly selective turn-on fluorescent chemodosimeters for Cu²⁺" @default.
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• W2024391337 doi "https://doi.org/10.1039/b811612a" @default.
• W2024391337 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19081963" @default.
• W2024391337 hasPublicationYear "2009" @default.
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