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Unsymmetrically urea silatranes: Synthesis, characterization and a selective on–off fluorescence response to acetate anion

AuthorsSingh, Gurjaspreet; Saroa, Amandeep; Promila, Sunita Rania; Choquesillo-Lazarte, Duane ; Sahoo, Subash
Fluorescence spectroscopy
Anion sensor
Issue Date1-May-2017
PublisherElsevier BV
CitationArabian Journal of Chemistry 10 (4): 523-531 (2017)
AbstractNew unsymmetrically Substituted Urea enclosed Silatranes (USUS) 2–5 are prepared in good yield by nucleophilic attack of pyrrolidine, piperidine, 3-methylpyridine-2-amine and N-methylbenzenamine containing active hydrogen atom on newly synthesized 3-isocyanatopropylsilatrane 1. All the compounds have been characterized by elemental analysis, IR, multinuclear (H and C) NMR and mass spectrometry. The single crystal X-ray crystallography technique facilitates the establishment of exact structures of silatranes 2, 3 and 4. The fluorescence titration results have revealed a selective on–off fluorescence response of silatranes toward acetate anion.
Publisher version (URL)http://dx.doi.org/10.1016/j.arabjc.2015.07.017
Identifiersdoi: 10.1016/j.arabjc.2015.07.017
issn: 1878-5352
Appears in Collections:(IACT) Artículos
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