SYNTHESIS, CHARACTERIZATION AND PHYSICOCHEMICAL STUDIES OF Ni(II) AND Cu(II) COMPLEXES WITH SOME NITROGEN- OXYGEN AND NITROGEN SULPHUR DONOR LIGANDSAbstract
Ni(II) and Cu(II) complexes of Schiff base thiosemicarbazones (L1) and semicarbazones (L2) derived from pyrrole-2-carboxaldehyde. These complexes are characterized by elemental analysis, molar conductance measurements, magnetic suscepectibility measurements, mass, IR, electronic and EPR spectral studies. The molar conductance measurements of the complexes in DMSO determine the non-electrolytes and electrolytes nature of the complexes based on their molar conductance value as higher value indicates the electrolytes nature of the complexes and lower value of the molar conductance indicates the non-electrolytes nature of the complexes. On the basis of spectral studies an octahedral geometry may be assigned for Ni(II) complexes except [Ni(L1)2](NO3)2 which are of tetrahedral geometry. A tetragonal geometry may be suggested for Cu(II) complexes.
Sulekh Chandra* and Prem Ballabh
Associate Professor, Department of Chemistry Zakir Husain Delhi College University of Delhi, J.L.N. Marg New Delhi-110002, India
22 February, 2013
06 May, 2013
30 May, 2013
01 June, 2013