Spectroscopic studies on Mn(II), Co(II), Ni(II), and Cu(II) complexes with N-donor tetradentate (N4) macrocyclic ligand derived from ethylcinnamate moiety

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Sulekh ChandraDeepali Jain

Abstract

Manganese(II), cobalt(II), nickel(II), and copper(II) complexes are synthesized with a novel tetradentate ligand, viz. 1,5,9,13-tetraaza-6,14-dioxo-8,16-diphenylcyclohexadecane (L) and characterized by the elemental analysis, molar conductance measurements, magnetic susceptibility measurements, mass, 1H NMR, IR, electronic, and EPR spectral studies. The molar conductance measurements of the complexes in DMSO correspond to be nonelectrolyte nature for Mn(II), Co(II), and Cu(II) whereas 1:2 electrolytes for Ni(II) complexes. Thus, these complexes may be formulated as [M(L)X(2)] and [Ni(L)]X(2), respectively (where M = Mn(II), Co(II), and Cu(II) and X = Cl- and NO(3-)). On the basis of IR, electronic, and EPR spectral studies an octahedral geometry has been assigned for Mn(II) and Co(II) complexes, square-planar for Ni(II) whereas tetragonal for Cu(II) complexes. The ligand and its complexes were also evaluated against the growth of bacteria and pathogenic fungi in vitro.

Citations

Nov 18, 2010·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Hanaa A El-BoraeyAhmed M El-Nahas
Jul 11, 2009·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Shweta VermaNidhi Joshi
Nov 18, 2008·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sanaa M EmamHeba A El-Shater
Mar 11, 2008·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh Chandra, Shweta Verma
May 23, 2008·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar Gupta, Sulekh Chandra
Apr 22, 2008·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·S J Swamy, Someshwar Pola
Mar 6, 2007·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar Gupta, Sulekh Chandra
May 8, 2007·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh Chandra, Meenakshi Pundir
Aug 26, 2006·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar GuptaSulekh Chandra
Jul 29, 2006·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar GuptaSulekh Chandra
Mar 15, 2006·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar Gupta, Sulekh Chandra
Aug 23, 2005·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh Chandra, Lokesh Kumar Gupta
Sep 8, 2005·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh Chandra, Lokesh Kumar Gupta
Aug 16, 2005·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh ChandraRachna Gupta
Aug 23, 2005·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh Chandra, Lokesh Kumar Gupta

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