Mixed Ligand of Mercury (II) Complexes of 4-Flouro-2-Cyanoaminothiophenolate with Amine or Triphenylphosphine as Co-Ligand
doi.org/10.26538/tjnpr/v5i3.4
Keywords:
Heterocyclic amines, Mercury (II) complex, NMR, Spectra, 4-flouro-2-cyanoaminothiophenolateAbstract
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.
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