Issue 55, 2015
From the journal:

RSC Advances

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

K. Velmurugan,a   A. Raman,bc   Derin Don,a   Lijun Tang,*d   S. Easwaramoorthi*bc  and  R. Nandhakumar*a  

* Corresponding authors

a Department of Chemistry, Karunya University, Karunya Nagar, Coimbatore – 641 114, India
E-mail: nandhakumar@karunya.edu

b Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, India
E-mail: moorthi@clri.res.in

c Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi – 110001, India

d College of Chemistry and Chemical Engineering, Liaoning Key Laboratory for the Synthesis and Application of Functional Compounds, Bohai University, Jinzhou 121013, P. R. China
E-mail: ljtang@bhu.edu.cn

Abstract

A quinoline benzimidazole-conjugate (QBC) has been synthesized for the highly selective detection of Zn(II) both by colorimetry and fluorimetry. Probe QBC senses Zn2+ over other cations as fluorescence ‘off–on’ behaviour in HEPES-buffered CH3CN–H2O (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 Zn2+ in much real sample analysis.

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

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Article information

DOI
https://doi.org/10.1039/C5RA04523A
Article type
Paper
Submitted
14 Mar 2015
Accepted
11 May 2015
First published
11 May 2015

RSC Adv., 2015,5, 44463-44469

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

K. Velmurugan, A. Raman, D. Don, L. Tang, S. Easwaramoorthi and R. Nandhakumar, RSC Adv., 2015, 5, 44463 DOI: 10.1039/C5RA04523A

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