Structural studies on Fe (III) and Co (II) complexes of 8-acetylmethylumbelliferone and its derivatives.

V. Jaya Tyaga Raju, B. Bharath Kumar, Vilas Ranboare and M. C. Ganorkar

Department of Chemistry, Nizam College, Hyderabad - 500 001 India

ABSTRACT:

Fe (III) and Co (II) complexes of physiologically active 8-acetyl-4-methyl umbelliferone (AMU) and its azomethine derivatives, namely the oxime (AMUO), hydrazone (AMUH) and thiosemi carbazone (AMUT) have been synthesized, They have been characterized on the basis of elemental analysis, thermogravimetric analysis, infrared and electronic spectra and magnetic moments. The observations show that AMU is a monobasic 00 donor, AMUO and AMUH are monobasic ON donors and AMUT Is a dibasic ONSO donor. AMUT undergoes enolisation during the complex formation and forms polymeric complexes. The participation of lactone carbonyl in coordination is a notable feature in AMUT complexes. All the complexes possess Octahedral geometry .

KEYWORDS:

Methylumbelliferone; Derivatives;

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Copy the following to cite this article: Raju V. J. T, Kumar B. B, Ranboare V, Ganorkar M. C. Corrosion Behaviour of Aluminium in HNO3 HNO3 - HCI and HNO3 - H2SO4 Mixtures. Orient J Chem 1987;3(3).

Copy the following to cite this URL: Raju V. J. T, Kumar B. B, Ranboare V, Ganorkar M. C. Corrosion Behaviour of Aluminium in HNO3 HNO3 - HCI and HNO3 - H2SO4 Mixtures. Orient J Chem 1987;3(3). Available from: http://www.orientjchem.org/?p=40012