Quinoline benzimidazole-conjugate for the highly selective detection of Zn(ii) by dual colorimetric and fluorescent turn-on responsesElectronic supplementary information (ESI) available. See DOI: 10.1039/c5ra04523a

A quinoline benzimidazole-conjugate ( QBC ) has been synthesized for the highly selective detection of Zn( ii ) both by colorimetry and fluorimetry. Probe QBC senses Zn 2+ over other cations as fluorescence 'off-on' behaviour in HEPES-buffered CH 3 CN-H 2 O (1 : 1, v/v, pH = 7.0) solution....

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Main Authors: Velmurugan, K, Raman, A, Don, Derin, Tang, Lijun, Easwaramoorthi, S, Nandhakumar, R
Format: Article
Language:English
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Summary:A quinoline benzimidazole-conjugate ( QBC ) has been synthesized for the highly selective detection of Zn( ii ) both by colorimetry and fluorimetry. Probe QBC senses Zn 2+ over other cations as fluorescence 'off-on' behaviour in HEPES-buffered CH 3 CN-H 2 O (1 : 1, v/v, pH = 7.0) solution. A possible mechanism is proposed based on the inhibition of PET and intramolecular restricted torsional rotation through the C-C single bond between the quinoline benzimidazole-conjugate. The Chemosensor is utilized to detect Zn 2+ in much real sample analysis. A quinoline benzimidazole-conjugate ( QBC ) has been synthesized for the highly selective detection of Zn( ii ) both by colorimetry and fluorimetry.
ISSN:2046-2069
DOI:10.1039/c5ra04523a