Add time:09/24/2019         Source:sciencedirect.com

A new series of the complexes has been prepared by template condensation reaction of dimedone and carbohydrazide in the methanolic medium forming the complexes of the type [M(TML)X]X2; where TML is a tetradentate macrocyclic ligand; M = Cr(III), Fe(III); X = Cl−, NO3-, CH3COO−. The complexes have been characterized with the help of elemental analyses, conductance measurements, molecular weight determination, magnetic measurements, electronic, infrared, far infrared spectral and structural studies. Molar conductance values indicate them to be 1:2 electrolytes. Electronic spectra along with magnetic moments suggest the five coordinate square pyramidal geometry for these complexes. The complexes have also been tested for their in vitro antibacterial activity by agar well diffusion method and macro dilution tube method. Some of the complexes showed good antibacterial activity.

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