Mixed Ligand of Mercury (II) Complexes of 4-Flouro-2-Cyanoaminothiophenolate with Amine or Triphenylphosphine as Co-Ligand

Adnan A. Hamada1*, Wesam H. Khalaf1, Samar S. Mohammed2, Ihmood K. Jebur1
1Department of Chemistry, College of Science, University of Tikrit, Tikrit, Iraq
2Department of Pharmaceutical Chemistry, College of Pharmacy, University of Tikrit, Tikrit, Iraq

Corresponding Author: adnanorganic2020@gmail.com; Tel: 009647702830664
Recieved Date: 5 September 2020; Accepted Date: 11 March 2021; Published Date: 03 March
Citation: Hamada AA, Khalaf WH, Mohammed SS, Jebur IK. Mixed Ligand of Mercury (II) Complexes of 4-Fouro-2-Cyanoaminothiophenolate with Amine or Triphenylphosphine as Co-Ligand. Trop J Nat Prod Res. 2021; 5(3):440-444. doi.org/10.26538/tjnpr/v5i3.4 http://www.doi.org/10.26538/tjnpr/v5i3.4
© 2021 Hamada et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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The coordination chemistry of benzothiazole and its derivatives with mercury (II) has been in focus because of the prominent role it plays in biological systems. This study was aimed at synthesizing and characterizing some new complexes of mercury (II) with mixed ligands of 4-flouro-2-cyanoaminothiophenolate and 2,2-bipyridine, 1,10-phenanthroline, ethylenediamine, 2-aminopyridine, 2-amino-3-methyl-pyridine or triphenylphosphine. The complexes were synthesized and characterized using the infrared spectrophotometry and nuclear magnetic resonance (NMR). Melting point and conductivity were measured on Gallenkamp melting point-device and digital conductivity meter, respectively. The results showed that the 2-cyanoaminothiophenolate ligand was bonded through the nitrogen of amino group and sulfur atoms. The diamine ligands (en, Phen, Bipy) were coordinated as bidentate, chelating through the nitrogen atoms, while the mono amine (2-amino pyridine, 2-amino-3-methylpyridine) were coordinated through the nitrogen of the heterocyclic ring, to afford a tetrahedral geometry around the Hg(II) ion.

Keywords: Heterocyclic amines, Mercury (II) complex, NMR, Spectra, 4-flouro-2-cyanoaminothiophenolate.
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