• Dr. Raman kumar

The Mn (II) and Fe (II) complexes of the chelating ligands were synthesized using metal halides. The complexes of a new hydrogen bonded macrocyclic ligand derived from metal ion catalysed template synthesis of 1,2-Diamino-4,5-dinitrobenzene and diacetylmonoxime with Mn(II) and Fe(II) have been synthesized. Characterizations have been done on the basis of their elemental analyses, conductivity, magnetic moment in addition to spectral data and UV - visible. On the basis of electronic spectra and magnetic moment data suggest that the outer d-orbital octahedral paramagnetic hydrogen bonded macrocyclic stable ring structure of the metal complexes. Spectroscopic studies indicate that the coordination occurs through two oxime-amine chelating ligands by neutral polydentate donor utilizing all its azomethine nitrogen for coordination with two halides ions in facial and axial mode with Mn (II) and Fe (II) formed stable ring structure complexes. The Mn (II) and Fe (II) complexes and ligands have been screened for antibacterial, antimicrobial activity and in the applied medicinal chemistry with other area of industries.

Macrocyclic complexes, Diacetylmonoxime, intramolecular hydrogenbonding, azomethiene nitrogen.

"Antimicrobial Activity of Binuclear Macrocyclic Mn(II) and Fe(II) Complexes with Polydentate ligands.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.630-636, June-2019, Available :http://www.jetir.org/papers/JETIR1908C81.pdf

"Antimicrobial Activity of Binuclear Macrocyclic Mn(II) and Fe(II) Complexes with Polydentate ligands.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp630-636, June-2019, Available at : http://www.jetir.org/papers/JETIR1908C81.pdf