Complexes of Co(II), Ni(II), Cu(II), Fe(II), Mn(II), Cd(II) & Hg(II) with Tridentate ONN Donor Schiff Bases

Abstract

Complexes of the types [MLCl₂H₂O], [M'LCl] [M = Co(II), Ni(II), Cu(II), Mn(II), Fe(II); M' = Cd(II), Hg(II), [M&rdquo;L&rsquo;Cl₂2H₂O] and [M&rdquo;L&rsquo;CI] [M" = Co(II), Ni(Il), Cu(II), Fe(II), Mn(II); M'" = Cd(II), Hg(II); LH = schiff base of benzoin with 2-amino-5- phenyl-l , 3, 4-oxadiazole; L'H = schiff base of benzoin with 2-amino-5-(<em>p</em>-anisil)-1, 3, 4-oxadiazolel have been prepared. The Co(II), Ni(II), Cu(II), Fe(II) and Mn(II) complexes are octahedral while Cd(II) and Hg(II) complexes are tetrahedral. Both the Schiff bases behave as tridentate ONN donors. The characterisation of the complexes has been done on the basis of analytical, conductance, magnetic susceptibility, molecular weight and IR, electronic, ¹H NMR and ESR spectral data.