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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2010, Volume 61, Issue 1,





Angela Kriza, Lucica Viorica Ababei, Nicolae Stănică, Ileana Rau, Elena Adina Rogozea
Spectral and Thermal Studies about the Complexes of Some Divalent Transitional Metals with Isonicotinic Acid Hydrazide

Abstract:

We synthesized and characterized five new complexes of some transitional metals sulphates with isonicotinic acid hydrazide (isoniazid - INH), having formula of type [M(INH)(SO4)(H2O)2]. xH2O (x =1, M = Cu(II), and x=0, M = Zn(II)), and [M(INH)(SO4)(H2O)2]2, M = Co(II), Ni(II) and Mn(II). All complexes were characterized on the basis of elemental analyses, IR spectroscopy, UV-Vis-NIR, EPR, as well as thermal analysis and determination of magnetic moments. The thermal behaviour of complexes was studied using thermogravimetry (TG) and differential thermal analysis (DTA). The ligand works as bidentate NO, being coordinated through the imine nitrogen and carbonylic oxygen. Complexes of Cu (II) and Zn(II) are monomeric and complexes of Co(II, Ni(II) and Mn(II) are dimeric. Keywords: isoniazid, dimeric complexes, thermal analysis

Issue: 2010, Volume 61, Issue 1
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