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We are actively involved in Synthesis, spectral, structural characterization and screening of biological activity of transition metal complexes of nitrogen sulfur containing ligands such as 1,3,4-oxadiazole, 1,3,4-thiadiazole-2-thione, 1,2,4-triazole-3-thiones and N`-acylhydrazine carbodithioate methyl /ethyl/benzyl esters. Ethylenediamine / 2,2'-bipyridyl /1,10-phenonthroline used as coligand. The ligands and their complexes have been characterized by various physicochemical techniques such as magnetic susceptibility measurement, electronic, IR, NMR, ESR spectral data and single crystal X-ray analyses. Thermogravimetric analyses of the complexes have been investigated by TGA which indicate for metal oxide/metal sulphide the final residue. The electrochemical behaviour, catalytic and antitumor activities of these ligands and their complexes will also investigate. Our aim is to perform a systematic study on binary and mixed ligand metal complexes of various typs of nitrogen sulphur ligands & their derivatives and evaluate their remarkable electrochemical, catalytic and biological properties. Geometry optimization has been done by the DFT method using B3LYP functional with 6-311 G(d,p){C,H,N,O,S}/Lanl2DZ basis set and the results are presented and compared with the experimental X-ray diffraction data .
The outcome of the research will help to understand the synthesis, spectral and structural characterization, redox behavior, catalytic and biological activities of metal complexes of above mentioned ligands. The newly synthesized complexes of these ligands will also be investigated for their bonding interactions with DNA in order to find out their bioactivity. The study will be of much help in the identification of bonding modes of such ligands, presence of hydrogen bonding, formation of supramolecular architecture, various types of other interactions. The complexes showing prominent activities will be investigated further as anti tumour agent by in vitro method. Thus the evaluation of antitumour activity of nitrogen sulfur ligands and their complexes will help in the identification of effective, economical and indigenously available therapeutic agents of clinical importance. This study will focus to design and developed cost effective metallic based fluorescence and electro active materials which may be used as alternative for commercial OER catalyst for water splitting for clean energy source and for oxidation of methanol and hydrazine.
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