4. Cr(III) and Mn(II) Complexes of a 12-Membered Tetraaza Macrocyclic Ligand : Synthesis and Spectroscopic Characterization

Sulekh Chandra* & Archana Gautam

Department of Chemistry, Zakir Husain College, University of Delhi, J.L.N. Marg,
New Delhi – 110002, India.
E-mail : schandra_00@yahoo.com

Abstract

Complexes of Cr(III) and Mn(II) with a 12-membered 1,3,7,9-tetraaza-4,6,10,12-tetraphenyl-2,8-diketocyclododecane macrocyclic ligand (L) have been synthesized. These complexes were characterized by elemental analysis, molar conductance measurements, magnetic susceptibitity measurements, mass, 1H NMR, IR, electronic and EPR spectral studies. These spectral studies suggest an octahedral geometry for Cr(III) and Mn(II) complexes. 
 

Keywords: Macrocyclic, Cr(III), Mn(II), Spectral studies.

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