Journal article Open Access

Trivalent transition metal complexes derived from thiocarbohydrazide and dimedone

Dharam Pal Singh; Parveen

Department of Chemistry, National Institute of Technology, Kurukshetra-136 119, Haryana, India

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Manuscript received online 30 April 2013, revised 24 May 2013, accepted 25 May 2013

A series of complexes of the type [M(TML)X]X2 ; where TML is a tetradentate macrocyclic ligand, M = CrIII and FeIII, X = Cl– , CH3COO or NO3 , have been synthesized by template condensation reaction of dimedone and thiocarbohydrazide in the presence of trivalent metal salts in a methanolic medium. The complexes have been characterized with the help of elemental analyses, conductance measurements, magnetic measurements, electronic, infrared, far infrared and Mass spectral studies. On the basis of all these studies, a five coordinated square pyramidal geometry has been proposed for all these complexes. These metal complexes have also been tested for their in vitro antimicrobial activities against some bacterial strains and some fungal strains.

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