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Issue 11, 2014
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Electrochemistry and structural properties of new mixed ligand nickel(ii) complexes based on thiosemicarbazone

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Abstract

Mixed ligand nickel(II) complexes of 5-chloro-2-hydroxybenzophenone-N-R-thiosemicarbazone (R: –CH3 (L1), –CH2–CH[double bond, length as m-dash]CH2 (LII)) and triphenylphosphine were synthesized. The structures of the complexes were characterized by elemental analysis, IR, 1H and 31P NMR spectroscopy, conductivity, electrochemical and magnetic moment measurements, and single-crystal X-ray diffraction technique. The two nickel(II) complexes have a square planar geometry containing O, N, and S atoms of the thiosemicarbazone, and the P atom of triphenylphosphine. The electrochemical behaviors of the thiosemicarbazone ligands and the nickel complexes were studied using cyclic voltammetry and square wave voltammetry. The redox processes of the compounds were significantly influenced by the central metal ions and the nature of the substituents on the thiosemicarbazones, which are the important factors in controlling the redox properties. In situ spectroelectrochemical studies were employed to determine the colors and spectra of the electro-generated species of the complexes.

Graphical abstract: Electrochemistry and structural properties of new mixed ligand nickel(ii) complexes based on thiosemicarbazone

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Supplementary files

Article information


Submitted
11 Apr 2014
Accepted
01 Sep 2014
First published
02 Sep 2014

New J. Chem., 2014,38, 5582-5589
Article type
Paper

Electrochemistry and structural properties of new mixed ligand nickel(II) complexes based on thiosemicarbazone

Ş. Güveli, A. Koca, N. Özdemir, T. Bal-Demirci and B. Ülküseven, New J. Chem., 2014, 38, 5582
DOI: 10.1039/C4NJ00556B

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