Manganese(II), cobalt(II) and nickel(II) complexes with 2-phenyl-3-(benzylamino)-1,2-dihydroquinazolin-4(3H)-one,pseudohalides and some bidentate N-donor ligands |
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Authors: | Vaishali A Sawant Bapu A Yamgar Sanjay S Chavan |
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Institution: | (1) Department of Chemistry, Shivaji University, Kolhapur, MS, 416 004, India; |
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Abstract: | Some mixed ligand complexes of the type M(L)(en or phen)(X)2]; where M = Mn(II), Co(II) or Ni(II); L = 2-phenyl-3-(benzylamino)-1,2-dihydroquinazolin-4(3H)-one; en = ethylenediamine, phen = 1,10-phenanthroline; X = N3
− or NCS− have been prepared. All the complexes were characterized by physico-chemical, spectroscopic and thermal studies. On the basis
of electronic spectra and magnetic susceptibility measurements, an octahedral geometry has been proposed for all the complexes.
The phen complexes are thermally more stable than the en complexes. The electrochemical behavior of the Ni(II) complexes showed that the complexes of phen are reduced at more positive potential compared to the corresponding en complexes. |
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