Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/79288
Type: Artigo de periódico
Title: Synthesis, characterization and thermal behavior of cobalt(II) 5-chloro-piridylamides complexes
Author: Lima, CBA
Espinola, JGP
de Oliveira, SF
Arakaki, LNH
Fonseca, MG
Airoldi, C
Abstract: Purple cobalt(II) complexes containing 5-chloro-2-aminepyridylacetamide (CPA), 5-chloro-2-aminepyridylpropionamide (CPP) and 5-chloro-2-aminepyridylbutyramide (CPB) ligands were prepared from ethanolic solutions. The general stoichiometry CoL2Cl2 (L = ligand) was determined from elemental analysis data. Infrared results show monodentate CPA and CPP ligands through the aromatic nitrogen atom, CPB is bidentate through the aromatic nitrogen atom and carboxyl group. Thermogravimetric curves under nitrogen showed in the final stage all complexes presented a mixture of cobalt(II) chloride and metallic cobalt as residue. The complexes containing CPA and CPP ligands decomposed in various stages with integral loss of ligand or partial loss of the chloride. Only two steps of decomposition are seen for CPB compound. (C) 2003 Elsevier B.V. All rights reserved.
Subject: cobalt(II)
pyridylacetamide
thermogravimetry
thermal decomposition
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/S0040-6031(03)00285-5
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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