alexa Abstract | Synthesis and characterization of tetraazamacrocyclic complexes using silica supported perchloric acid (HClO4:SiO2) as catalyst

Journal of Chemical and Pharmaceutical Research
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Original Articles Open Access

Abstract

Silica supported perchloric acid (HClO4:SiO2) was used as a catalyst for the synthesis of twelve tetraazamacrocyclic complexes of transition metals using chloride, nitrate and acetate salts of Co(II), NI(II), Cu(II) and Zn(II). The complexes were obtained by template condensation of ethylenediamine and glyoxal in ethanolic medium in presence of above transition metal ions using silica supported perchloric acid (HClO4-SiO2) as catalyst. The synthesized complexes have been characterized with the help of molar conductance, magnetic susceptibility measurements, IR, electronic, 1H-NMR, Mass Spectra, TGA, and powder x-ray analysis. Based on the results obtained a six coordinated octahedral geometry has been proposed for all these complexes. The synthesized complexes were also screened for their antimicrobial activity.

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Author(s): D S Wankhedea P B Wagha and S P Hangirgekarb

Keywords

ethylenediamine, glyoxal, template method, octahedral, antimicrobial activity

 
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