A highly selective fluorescent chemosensor for CN− based on a novel bis(salamo)-type tetraoxime ligand
作者： Fei Wang , Lei Gao , Qing Zhao , Yang Zhang , Wen-Kui Dong
DOI: 10.1016/J.SAA.2017.09.027
关键词:
摘要: Abstract The optical properties of a novel chemosensor for cyanide anions based on symmetric bis(salamo)-type ligand (H 3 L) were investigated by UV–Vis and fluorescence spectroscopy in MeOH/H 2 O (1:1 v/v) solution. Sensor H L can selectively sense CN − prominent color changes among other anions. exhibits an apparent enhancement at 482 nm to which because ions interact with C N bonds. Combining the corrected Benesi-Hildebrand formula, binding constant formed host-guest complex was calculated as 2.42 × 10 5 M − 1 . Meanwhile, detection limit sensor toward 8.91 × 10 − 7 M. It is worth noting that designed be used rapid basic pH range, has great practical value.
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