MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION

MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION

ABSTRACT Two coordination complexes, Co(HIMC)2(H2O)2 (1) and Co(H2IMDC)2(H2O)2 (2), were synthesized by mixing the complex precursor Cobalt(II) hexafluoroacetylacetonate (Co(hfacac)2) with 1H-imidazole-4-carboxylic acid (H2IMC) and 1H-imidazole-4,5-imidazoledicarboxylic acid (H3IMDC) ligands. These...

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Autores principales: Arrué,Ramon, Toledo,Dominique, Peña,Octavio, Pivan,Jean-Yves, Reis,Mario, Moreno,Yanko
Lenguaje:English
Publicado: Sociedad Chilena de Química 2018
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072018000204006
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spelling oai:scielo:S0717-970720180002040062018-07-19MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTIONArrué,RamonToledo,DominiquePeña,OctavioPivan,Jean-YvesReis,MarioMoreno,YankoABSTRACT Two coordination complexes, Co(HIMC)2(H2O)2 (1) and Co(H2IMDC)2(H2O)2 (2), were synthesized by mixing the complex precursor Cobalt(II) hexafluoroacetylacetonate (Co(hfacac)2) with 1H-imidazole-4-carboxylic acid (H2IMC) and 1H-imidazole-4,5-imidazoledicarboxylic acid (H3IMDC) ligands. These compounds have been isolated as neutral, air and thermal stable solid and have been characterized by FT-IR and powder X-Ray diffraction analysis. The thermal stability and magnetic properties were studied in the solid state. Compounds (1) and (2) are mononuclear complexes, where the cobalt ions adopt an distorted octahedral geometry. At low temperature they exhibit a weak antiferromagnetic interaction. The contribution of the angular momentum to the magnetic moment as well as intermolecular interactions were taken into consideration for the quantitative modeling of their magnetic propertiesinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.63 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072018000204006en10.4067/s0717-97072018000204006
institution Scielo Chile
collection Scielo Chile
language English
description ABSTRACT Two coordination complexes, Co(HIMC)2(H2O)2 (1) and Co(H2IMDC)2(H2O)2 (2), were synthesized by mixing the complex precursor Cobalt(II) hexafluoroacetylacetonate (Co(hfacac)2) with 1H-imidazole-4-carboxylic acid (H2IMC) and 1H-imidazole-4,5-imidazoledicarboxylic acid (H3IMDC) ligands. These compounds have been isolated as neutral, air and thermal stable solid and have been characterized by FT-IR and powder X-Ray diffraction analysis. The thermal stability and magnetic properties were studied in the solid state. Compounds (1) and (2) are mononuclear complexes, where the cobalt ions adopt an distorted octahedral geometry. At low temperature they exhibit a weak antiferromagnetic interaction. The contribution of the angular momentum to the magnetic moment as well as intermolecular interactions were taken into consideration for the quantitative modeling of their magnetic properties
author Arrué,Ramon
Toledo,Dominique
Peña,Octavio
Pivan,Jean-Yves
Reis,Mario
Moreno,Yanko
spellingShingle Arrué,Ramon
Toledo,Dominique
Peña,Octavio
Pivan,Jean-Yves
Reis,Mario
Moreno,Yanko
MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION
author_facet Arrué,Ramon
Toledo,Dominique
Peña,Octavio
Pivan,Jean-Yves
Reis,Mario
Moreno,Yanko
author_sort Arrué,Ramon
title MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION
title_short MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION
title_full MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION
title_fullStr MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION
title_full_unstemmed MAGNETIC ANALYSIS OF TWO [COBALT-IMIDAZOLE-CARBOXYLATE] COMPLEXES: ORBITAL CONTRIBUTION
title_sort magnetic analysis of two [cobalt-imidazole-carboxylate] complexes: orbital contribution
publisher Sociedad Chilena de Química
publishDate 2018
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072018000204006
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AT penaoctavio magneticanalysisoftwocobaltimidazolecarboxylatecomplexesorbitalcontribution
AT pivanjeanyves magneticanalysisoftwocobaltimidazolecarboxylatecomplexesorbitalcontribution
AT reismario magneticanalysisoftwocobaltimidazolecarboxylatecomplexesorbitalcontribution
AT morenoyanko magneticanalysisoftwocobaltimidazolecarboxylatecomplexesorbitalcontribution
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