Synthesis of Eu(III) and Tb(III) complexes with novel pyridine dicarboxamide derivatives and their luminescence properties.
Spectrochim Acta A Mol Biomol Spectrosc
; 71(2): 371-6, 2008 Nov 15.
Article
en En
| MEDLINE
| ID: mdl-18325829
ABSTRACT
A novel ligand, N2,N6-bis[2-(3-methylpyridyl)]pyridine-2,6-dicarboxamide (L2) and the corresponding Eu(III) and Tb(III) hydrochlorate complexes have been synthesized and characterized in detail based on elemental analysis, IR and NMR. The crystal and molecular structure of the complexes was determined by X-ray crystallography. The Eu(III) and Tb(III) ions were found to coordinate to the amido nitrogen atoms and pyridine nitrogen atoms. The luminescence properties of lanthanide complexes in solid state, in different solutions and in different pH value were investigated. The result shows that Tb(III) complexes exhibit more efficient luminescence than Eu(III) complexes, and the ligand (L2) is an excellent sensitizer to Tb(III) ion.
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Banco de datos:
MEDLINE
Asunto principal:
Piridinas
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Terbio
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Europio
/
Ácidos Nicotínicos
Idioma:
En
Año:
2008
Tipo del documento:
Article