Transition Metal Chemistry

, Volume 15, Issue 2, pp 145–147 | Cite as

Synthetic and structural aspects of hepta-coordinated semicarbazato complexes of oxotungsten(VI)

  • Neeta Kanoongo
  • Ranvir Singh
  • Jagdish P. Tandon
Full Papers


The condensation of aldehydes and ketones, 2-pyridine carbaldehyde, 2-thiophene carbaldehyde, 2-furyl aldehyde, 3-indole carbaldehyde, 3-phenylpropane-1-one, 2-propanone, 4-methyl-2-pentane and 2-phenylethane-2-one, with semicarbazide hydrochloride yields the corresponding Schiff bases which, when subsequently reacted with tungsten oxotetrachloride, yield addition products of the type WOCl4·L (L = ligand). The resulting complexes have been characterized by elemental analysis, molecular weight determination, and by conductivity and magnetic measurements. The bonding mode of the ligands with the metal atom is deduced on the basis of i.r.,1H n.m.r. and13C n.m.r. spectral studies.


Bipy Molecular Weight Determination Semicarbazones Azomethine Nitrogen Carbaldehyde 
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Copyright information

© Chapman and Hall Ltd 1990

Authors and Affiliations

  • Neeta Kanoongo
    • 1
  • Ranvir Singh
    • 1
  • Jagdish P. Tandon
    • 1
  1. 1.Department of ChemistryUniversity of RajasthanJaipurIndia

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