Jump to main content
Jump to site search


Square planar Ni(II) complexes of acetone N4-phenyl-thiosemicarbazone and in situ generated benzoyl thiosemicarbazide ligand: Synthesis, spectral and structural characterizations, thermal behaviour and electrochemical studies

Abstract

Two novel square planar complexes [Ni(Hapt)2] (1) and [Ni(btsc)] (2) have been synthesized from acetone N4-phenyl-thiosemicarbazone (Hapt) and benzoyl-3-thiosemicarbazide (Hbtsc) by the reaction of nickel (II) salt. The ligand and complexes have been characterized by various physicochemical methods. Complexes 1 and 2 crystallize in monoclinic and orthorhombhic system with space group C2/c and P b c n, respectively. In complexes 1 and 2 nickel centre is coordinated through the nitrogen and sulphur atoms forming a square planar geometry. Complexes 1 and 2 are stabilized via various types of intermolecular interactions. The course of the thermal degradations of complexes 1 and 2 have been investigated by TGA which indicate that metal sulphide is formed as the final residue. Cyclic voltammetric studies show that complex 1 exhibits reversible Ni(II)/Ni(III) redox process at 0.525 V (E1/2 value at 20 mVs-1) while complex 2 shows reversible redox behavior with an E1/2 value of 0.43 V. Further, efficient electrocatalytic properties of the complexes 1 and 2 toward the oxidation of hydrazine and methanol are demonstrated after immobilizing the complexes into Nafion films. The electrocatalytic properties may find applications in industries, methanol sensing and in methanol fuel cells.

Back to tab navigation

Supplementary files

Publication details

The article was received on 28 Mar 2017, accepted on 09 Nov 2017 and first published on 13 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ01030C
Citation: New J. Chem., 2017, Accepted Manuscript
  •   Request permissions

    Square planar Ni(II) complexes of acetone N4-phenyl-thiosemicarbazone and in situ generated benzoyl thiosemicarbazide ligand: Synthesis, spectral and structural characterizations, thermal behaviour and electrochemical studies

    M. K. Bharty, S. Paswan, P. Bharati, P. K. Sonkar, V. Ganesan and R. J. Butcher, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ01030C

Search articles by author

Spotlight

Advertisements