Abstract
A new ligand containing a N2S donor set of atoms has been prepared using Click Chemistry from the reaction of 1,3,4-thiadiazole-2,5-dithiol dipotassium salt with propargyl bromide followed by the addition of the product formed from the reaction of sodium azide and octyl iodide, using Cu(I) as catalyst. The ligand was characterized using FT-IR, UV-Vis, 1H, 13C NMR spectroscopes and C, H, N elemental analysis. The corresponding Co(II), Ni(II) and Cu(II) complexes were characterized by FT-IR, UV-Vis spectroscopes as well as conductivity and magnetic susceptibility measurements. These measurements suggest that the geometry around the Co is tetrahedral, while around the Ni and Cu it is distorted octahedral. The solubility’s of the ligand and its complexes were measured in different solvents.
Highlights
Five membered aromatic systems containing three hetero atoms at symmetrical positions have been studied due to their interesting physiological properties (Hussain, Sharma, & Amir, 2008), as well as their involvement in the life processes (Salimon et al, 2010)
A new ligand containing a N2S donor set of atoms has been prepared using Click Chemistry from the reaction of 1,3,4-thiadiazole-2,5-dithiol dipotassium salt with propargyl bromide followed by the addition of the product formed from the reaction of sodium azide and octyl iodide, using Cu(I) as catalyst
The corresponding Co(II), Ni(II) and Cu(II) complexes were characterized by FT-IR, UV-Vis spectroscopes as well as conductivity and magnetic susceptibility measurements
Summary
Five membered aromatic systems containing three hetero atoms at symmetrical positions have been studied due to their interesting physiological properties (Hussain, Sharma, & Amir, 2008), as well as their involvement in the life processes (Salimon et al, 2010). Aromatic heterocyclic ligands and their metal complexes play key roles as catalysts, anti-HIV, anti-microbial and β-lactamase inhibitors in biological reactions (Suijkerbuijk et al, 2007; Oliva et al, 2010). This type of compounds has other applications like anticorrosive agents, photographic materials, agrochemicals and dyes (Kumar et al, 2009). Nickel compounds have been interesting for many reasons, in biological systems, nickel forms complexes with adenosine triphosphate, amino acids, peptides, proteins and deoxyribonucleic acid (Reddy et al, 2012; Air Quality Guidelines, 2000). The complexes of this ligand with Co(II), Ni(II) and Cu(II) have been isolated
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