Magnetic analysis of two [cobalt-imidazole-carboxylate] complexes: Orbital contribution
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Archivos
Fecha
2018
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
Sociedad Chilena de Quimica
Nombre de Curso
Licencia CC
Licencia CC
Resumen
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. © 2018 Sociedad Chilena de Quimica. All Rights Reserved.
Notas
Indexación Scopus
Palabras clave
Metal-Organic Frameworks, Coordination Polymer, Imidazoles
Citación
Journal of the Chilean Chemical Society Volume 63, Issue 2, Pages 4006 - 4011 2018
DOI
10.4067/s0717-97072018000204006