Quinoline benzimidazole-conjugate for the highly selective detection of Zn( ii ) by dual colorimetric and fluorescent turn-on responses

Quinoline benzimidazole-conjugate for the highly selective detection of Zn( ii ) by dual colorimetric and fluorescent turn-on responses

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 possibl...

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Veröffentlicht in:RSC advances 2015-01, Vol.5 (55), p.44463-44469
Hauptverfasser: Velmurugan, K., Raman, A., Don, Derin, Tang, Lijun, Easwaramoorthi, S., Nandhakumar, R.
Format: Artikel
Sprache:eng
Schlagworte:
Bonding
Carbon-carbon composites
Cations
Chemoreceptors
Colorimetry
Fluorescence
Fluorimetry
Quinoline
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Zusammenfassung: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.
ISSN:2046-2069
2046-2069
DOI:10.1039/C5RA04523A