Novel dithieno-benzo-imidazole-based Pb2+ sensors: substituent effects on sensitivity and reversibility.
نویسندگان
چکیده
Two novel dithieno-benzo-imidazole-based compounds (M2 and A2) showed remarkable sensitivities towards Pb(2+) by 12-fold enhancement and 10-fold decay of fluorescence, respectively, in aqueous solutions. Substituent effects of different dithieno-benzo-imidazole-based moieties (M1, M2, A1 and A2) on the quantum yields, fluorescence lifetimes and sensitivities to Pb(2+) along with the reversibilities by S(2-) were investigated.
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عنوان ژورنال:
- Chemical communications
دوره 48 45 شماره
صفحات -
تاریخ انتشار 2012