Synthesis and characterization of mixed ligand catecholato-bis (diamine-mono-dithiocarbamato) vanadium (IV) complexes

Authors

  • B Begum Jagannath University, Dhaka 1100
  • A Sarker Jagannath University, Dhaka 1100
  • AKM Lutfor Rahman Jagannath University, Dhaka 1100
  • NC Bhoumik Wazed Miah Science Research Centre, Jahangirnagar University, Dhaka-1342

DOI:

https://doi.org/10.3329/bjsir.v52i2.32913

Keywords:

Diamine-mono-dithiocarbamate-catechol mixed ligand, V(IV) complex, Molar conductance, FT-IR, Electronic and 1H-NMR spectra

Abstract

Diamine-mono-dithiocarbamates are mono-basic bidentate ligand forming stable complexes with transition metals. Mixed ligand catecholato-bis (diamine-mono-dithiocarbamato) vanadium (IV) complexes were synthesized and characterized using FT-IR, UV-visible and 1H-NMR spectroscopic techniques. The formation of vanadium complexes was con?rmed by the disappearance of ?S-H band in the complexes which was present in the ligands and incidence of ?V-S and ?V-O band in FT-IR spectra of the complexes. The mono-dithiocarbamate with one uncoordinated ?NH/NH2 group was indicated by the presence of ?N-H vibrational band in both the ligands and complexes. In the 1H-NMR spectra, the peak for SH proton of ligands disappeared in the complexes suggest the formation of [VL2Cat] complex. Non-electrolytic nature of the synthesized complexes was established by their low molar conductance values. The +4 oxidation state of vanadium was con?rmed by the electronic spectra of the complexes. On the basis of all physico-chemical data, a six-coordinated octahedral structure has been suggested for catecholato-bis (diamine-mono-dithiocarbamato) vanadium (IV) complexes.

Bangladesh J. Sci. Ind. Res. 52(2), 89-96, 2017

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Published

2017-06-13

How to Cite

Begum, B., Sarker, A., Rahman, A. L., & Bhoumik, N. (2017). Synthesis and characterization of mixed ligand catecholato-bis (diamine-mono-dithiocarbamato) vanadium (IV) complexes. Bangladesh Journal of Scientific and Industrial Research, 52(2), 89–96. https://doi.org/10.3329/bjsir.v52i2.32913

Issue

Vol. 52 No. 2 (2017)

Section

Articles

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