7187379870

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Abstract

Biologically potent dioxomolybdenum(VI) complexes with nitrogen-sulfur and nitrogen-oxygen donar ligands : Synthesis, characterisation and antimicrobial activity

Author(s): Ashu Chaudhary, R.V.Singh

Molybdenum(VI) complexes of 3,4,5-trimethoxybenzaldehydethio semicarbazone (TBTSCZH), 3,4,5-trimethoxybenzaldehydesemicarbazone (TBSCZH), 3,4,5-trimethoxy-benzaldehydebenzothiazoline (TBBZTH) and 3,4,5-trimethoxybenzaldehyde- S-benzyldithiocarbazate (TBDTCZH) have been synthesized and characterized by physico-chemical and spectroscopic studies. The complexes MoO2 (L)2 (where L represented the deprotonated form of the ligands), were formed by the reactions between dioxobis(2,4- pentanedionato-O,OÂÂ’)molybdenum(VI) and the ligands TBTSCZH,TBSCZH, TBBZTH and TBDTCZH by using both techniques (thermal and microwave). The structural features of these molybdenum complexes were explored by IR, 1H NMR, 13C NMR and molecular weight determinations.An octahedral arrangement of ligands around the central molybdenum atom is proposed. All the four ligands and their complexes have been screened for their biological activity on several pathogenic fungi and bacteria and the data show good activity of these complexes and ligands.


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