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- W2138608418 abstract "An efficient new ratiometric chemosensor, 6-imidazo-2-yl-5,6-dihydro-benzo[4,5]imidazo[1,2-c]quinazoline (PB), which enables selective sensing of Al3+ in aqueous DMSO was synthesized by a facile one step condensation reaction of imidazole-2-carboxaldehyde with 2-(2-aminophenyl)-1H-benzimidazole. The probe PB was characterized by elemental analysis, 1H and 13C NMR, ESI-MS and IR spectral techniques. Upon addition of Al3+, the fluorescent probe PB induces ratiometric responses in both absorption and fluorescence spectra on the basis of a charge transfer mechanism. The receptor PB serves for highly selective, sensitive and ratiometric detection of Al3+ without the interference of biologically and environmentally relevant cations. The detection limit is found to be 5.3 × 10−7 M. The Job's plot analysis indicates the binding stoichiometry of the complex to be 1 : 1 (host/guest)." @default.
- W2138608418 created "2016-06-24" @default.
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- W2138608418 date "2013-01-01" @default.
- W2138608418 modified "2023-09-25" @default.
- W2138608418 title "A ratiometric fluorescent sensor for selective recognition of Al3+ ions based on a simple benzimidazole platform" @default.
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- W2138608418 doi "https://doi.org/10.1039/c3ra43843k" @default.
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