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ELECTRONIC POLARIZABILITIES OF NEODYMIUM AND ERBIUM MALEATES HYDRATED

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Author(s): LIMA, Francisco José Santos; MELO, Roseane Maria de; SILVA, Ademir Oliveira da

Journal: Periódico Tchê Química
ISSN 1806-0374

Volume: 8;
Issue: 16;
Start page: 67;
Date: 2011;
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Keywords: Coordination Compounds | Lanthanides | Spectroscopy

ABSTRACT
The oscillator strength and the polarizability electronic have been used to evaluate modifications in thelevels of energy of metallic ions in the coordination compound. The first property evaluates the disturbance inthe states of energy caused by the force of the ligand field of the groups of atoms that are linked with the metal.The second property evaluates the easiness in which the electric field of the radiation promotes an electronictransition. In this work they were appraised these properties for the neodymium and erbium hydrated maleates.In agreement with the results, it was possible to observe that there is a significant increase in the deformation ofthe electronic cloud of the ion Nd3+, in the transition of smaller energy. In the erbium maleate an increase wasalso observed in the polarizability, in the transition of smaller energy.. We ended that, in these systems, thespectral area of low energy influenced more in the deformation of the electronic cloud of the species.

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