Synthesis and spectral characterization of naphthyldihydrazones derived from some 1,3- dicarbonyl compounds and their Ni(II), Cu(II) and Zn(II) complexes

Journal of the Iranian Chemical Research

مقاله 5، دوره 5، شماره 1، خرداد 2012، صفحه 23-29   

نویسندگان

Muhammed Basheer Ummathur^{* 1}؛ Anjali Krishnan¹؛ Perumpalli Ummer²

¹Department of Chemistry, KAHM Unity Women’s College, Manjeri, Kerala-676122, India

²Department of Chemistry, University of Calicut, Kerala-673635, India

چکیده

The coupling of tetrazotised 1,8-diaminonaphthalene with 1,3-dicarbonyl compounds [acetylacetone,
methylacetoacetate and acetoacetanilide] yielded a new series of tetradentate ligand systems. Analytical, IR,
1H NMR and mass spectral data indicate that the compounds exist in the intramolecularly hydrogen bonded
dihydrazone form. Dibasic tetradentate N2O2 coordination of these compounds in their [ML] complexes [M
= Ni(II), Cu(II) and Zn(II)] has been established on the basis of analytical and spectral data. The Ni(II) and
Zn(II) chelates are diamagnetic while Cu(II) complexes showed normal paramagnetic moment.

کلیدواژه‌ها

Naphthyldihydrazones؛ Metal complexes؛ IR spectra؛ 1H NMR؛ Mass spectra

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