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Cyclic voltammetric study on the effect of the introduction of secondary ligands on the redox behaviour of the copper-saccharin complex

Authors:

Monira Laiju,

University of Dhaka, BD
About Monira

Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka-1000, Bangladesh.

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H. M. Naseem Akhtar,

University of Dhaka, BD
About H. M. Naseem
Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka-1000, Bangladesh.
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M. A. Mamun,

University of Dhaka, BD
About M. A.
Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka-1000, Bangladesh.
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Md. Abdul Jabbar,

University of Dhaka, BD
About Md. Abdul
Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka-1000, Bangladesh.
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M. Q. Ehsan

University of Dhaka, BD
About M. Q.
Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka-1000, Bangladesh.
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Abstract

The detailed redox behaviour of copper-saccharin (Cu-sac) complex was examined using the cyclic voltammetric technique. It was found that the adsorption process suppresses the Faradaic process of the Cu-sac complex. The effect of the introduction of secondary ligands such as 1,10-phenanthroline (phen), pyridine (py) and bypyridine (bp) on the redox behaviour of the Cu-sac complex in aqueous solution was studied where these ligands contribute on the charge-transfer kinetics of the complex. The heterogeneous charge transfer rate constants are found to follow the order Cu(NO3)2>Cu-sac-bp>Cu-sac>Cu-sac-phen>Cu-sac-py.

 

Keywords: Copper-saccharin complex, cyclic voltammetry, ligands, redox behaviour.

J.Natn.Sci.Foundation Sri Lanka 2010 38 (2): 91-99

Doi: 10.4038/jnsfsr.v38i2.2033

How to Cite: Laiju, M., Akhtar, H.M.N., Mamun, M.A., Jabbar, M.A. and Ehsan, M.Q., 2010. Cyclic voltammetric study on the effect of the introduction of secondary ligands on the redox behaviour of the copper-saccharin complex. Journal of the National Science Foundation of Sri Lanka, 38(2), pp.91–99. DOI: http://doi.org/10.4038/jnsfsr.v38i2.2033
Published on 30 Jun 2010.
Peer Reviewed

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