Magnetic and structural study of unsolvated [cu(acac)2], (acac= acetylacetonate)

• Y MORENO ^[1] ; R ARRUE ^[1] ; R SAAVEDRA ^[1] ; J-Y PIVAN ^[2] ; O PEÑA ^[3] ; T ROISNELL ^[3]
  1. [1] Universidad de Concepción

     Universidad de Concepción

     Comuna de Concepción, Chile

     
  2. [2] E.N.S de Chimie de Renners
  3. [3] University de Rennes - 1

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• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 58, Nº. 4, 2013, págs. 2122-2124
• Idioma: inglés
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  • This work is the first of a series of studies on systems with a common basic structure, Cu-b-diketonate, whose ability to bind to other ligands is regulated by the presence of electron-withdrawing groups affecting the electronic density on the copper ion. In this paper the [Cu (acac)2] system is studied. Its structure reveals discrete units linked through H bridges (c.a. 2.7Å). The crystallographic system and space group, are monoclinic and P21/n respectively; the cell parameters are a= 10.34Å, b= 4.71Å, c= 11.38Å, beta= 91.78°. The magnetic behaviour corresponds to a simple paramagnetism with µ= 1.8 [BM]; however, a weak antiferromagnetic interaction is observed at lower temperatures.