EPR, IR and electronic spectral studies on Mn(II), Co(II), Ni(II) and Cu(II) complexes with a new 22-membered azamacrocyclic [N4] ligand

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Sulekh Chandra, Lokesh Kumar Gupta

Abstract

The complexes of transition metal ions with an azamacrocyclic tetradentate nitrogen donor [N4] ligand viz. 2,6,12,16,21,22-hexaaza;3,5,13,15-tetramethyltricyclo[15.3.1.1(7-11)] docosa;1(21),2,5,7,9,11(22),12,15,17,19-decaene (L) have been synthesized. All the complexes were found to have general composition M(L)X2 [where M = manganese(II), cobalt(II), nickel(II) and copper(II) and X = Cl- & NO3-]. All the complexes are characterized by the elemental analysis, molar conductance measurements, magnetic susceptibility measurements, mass, 1H NMR, IR, electronic, EPR spectral and cyclic voltammetric studies. An octahedral geometry was assigned for Mn(II), Co(II) and Ni(II) complexes and tetragonal for Cu(II) complexes. The biological actions of the ligand and complexes have been screened in vitro against many bacteria and pathogenic fungi to study their comparative capacity to inhibit the growth.

Citations

Mar 1, 2013·Materials Science & Engineering. C, Materials for Biological Applications·S SudharsanR Senthilkumar
May 23, 2008·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar Gupta, Sulekh Chandra
Mar 6, 2007·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar Gupta, Sulekh Chandra
Jul 27, 2005·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh Chandra, Lokesh Kumar Gupta
Aug 26, 2006·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Lokesh Kumar GuptaSulekh Chandra
Aug 1, 2006·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·R N PatelU K Chauhan
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
Jun 28, 2005·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·G Lakshminarayana, S Buddhudu
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Aug 23, 2005·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Sulekh Chandra, Lokesh Kumar Gupta
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