Summary
The ligating behaviour of the normally tridentate but potentially tetradentate ligand 3-hydroxyimino-2-butanone-1-benzoylhydrazone (LH2) towards CuII and NiII ions has been investigated. The ligand reacts in either its keto or enol form, depending on the pH of the reaction medium. Metal complexes of the type [Cu(LH2)]X2 · H2O (X = Cl, NO3 or ClO4), [Ni(LH2)2]X2 · 2H2O (X = Cl, Br, NO3 and ClO4), Cu(L) and Ni(L) have been isolated and characterised by spectral (u.v-vis., i.r. and e.p.r.) and magnetic susceptibility measurements. Location of the bonding sites and the probable structures of the complexes has also been discussed. The reactions of Cu(L) and Ni(L) with pyridine have also been examined.
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Ghosh, S., Kumar Bandyopadhyay, T. The ligating behaviour of 3-hydroxyimino-2-butanone-1-benzoylhydrazone towards NiII and CuII ions. Transition Met Chem 10, 57–60 (1985). https://doi.org/10.1007/BF00624206
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DOI: https://doi.org/10.1007/BF00624206