Study of Imino Aceto Hydroxamicacid Magnetic and Spectral Behaviour

Authors

  • Suman Kumari   Department of Chemistry, J. P. University, Chapra, India

Keywords:

Deprotonated, Uninegative, Ligand, Aldimino, Monomeric

Abstract

The Schiff base of the e-amino aceto hydroxamic acid is higly prons to co-ordination when it is in the enol form. It is expected that one hyddroxy (OH) proton of the ligand molecule will be diprotonated forming mono-anionoc bidentate donor molecule. In this case (N-OH) proton of the hydroxamic acid moeity is lost producing uninegative ion. The resultant ligand acts as bidentate molecule which co-ordinat through imino nitrogen and one aldimino nitrogen atom of the ligand molecule. In complexes (OH) amide bands (C=O) and (N-O) of ligand molecule are affected appreciable. In the basis of infra-red spectra that aldimino (azo methine group nitrogen, C=N) nitrogen and deprotonated hydroxamic part (N-O) nitrogen atoms are the bonding sites of a(p-methoxy aceto phenone) imino aceto hydroxamic acid. In case of ammine complexes, the broad band at 3300 cis attributed to (N-H) band of co-ordinated ammonia molecules in the complexes. In pyridine and picoline containing complexes the position of (C=N) band could not be ascertained difinitaly due to bulky ligand molecule and amide as well as imids group (C=N) vibrations. The pyridine or picoline complexes, however display some extra bands in finger print and far infrared region. The pyridine ring breathing mode of vibration located at 990-1030 cm³ in complexes has been taken to be characterstic vibration of co-ordinated pyridine and picolines. A new band obtained in the range of 430-450 cm³ due to (M-N) vibrations further confirms the participation of aldimino and hydroxamino nitrogen atoms in the bond formations with the metal cations. It is proposed that one nitrogen atom (hydroxamino) of deprotonated hydroxamic acid part (N-O) and one nitrogen atom of the azo-methine group are the bonding sites of the ligand, (p-methoxy acetophenone) imino aceto hydroxamic acid. The electrical conductance of all the complexes show that these complexes are to be non-electrolyte in nature. Elemental analysis of the complexes indicate that all the complexes are monomeric in nature.

References

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International Journal of Scientific Research in Science and Technology

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Published

2017-06-30

Issue

Volume 3, Issue 4, May-June-2017

Section

Research Articles

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How to Cite

[1]
Suman Kumari "Study of Imino Aceto Hydroxamicacid Magnetic and Spectral Behaviour" International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011,Volume 3, Issue 4, pp.674-679, May-June-2017.