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Synthesis, characterization and luminescence properties of Eu(III) and Tb(III) complexes with novel pyrazole derivatives and 1,10-phenanthroline.
- Source :
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Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2010 Feb; Vol. 75 (2), pp. 825-9. Date of Electronic Publication: 2009 Dec 05. - Publication Year :
- 2010
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Abstract
- Two novel pyrazole-derived ligands, 3-chloro-6-(3,5-dimethyl-1H-pyrazol-1-yl)picolinic acid (CDPA) and 3-chloro-6-(3,5-dimethyl-1H-pyrazol-1-yl)-N-phenylpicolinamide (CDPP) were prepared by 3,6-dichloropicolinic acid (DCPA). Their complexes with terbium(III) and europium(III) were synthesized. The complexes were characterized by elemental analysis, infrared spectra, (1)H NMR and TG-DTG. Furthermore, the above complexes using 1,10-phenanthroline as a secondary ligand were also synthesized and characterized. The luminescence properties of these complexes in solid state were investigated. The results suggested that Tb(III) complexes exhibit more efficient luminescence than Eu(III) complexes and the fluorescence of the complexes with 1,10-phenanthroline as a secondary ligand was prominently stronger than that of complexes without this ligand., and the three ligand (DCPA), (CDPP) and (CDPA) are excellent sensitizers to Eu(III) and Tb(III) ion.<br /> (Copyright (c) 2009 Elsevier B.V. All rights reserved.)
- Subjects :
- Europium metabolism
Luminescence
Magnetic Resonance Spectroscopy
Molecular Structure
Organometallic Compounds chemical synthesis
Picolinic Acids chemical synthesis
Pyrazoles chemical synthesis
Spectrophotometry, Infrared
Terbium metabolism
Europium chemistry
Organometallic Compounds chemistry
Phenanthrolines chemistry
Picolinic Acids chemistry
Picolinic Acids metabolism
Pyrazoles chemistry
Pyrazoles metabolism
Terbium chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1873-3557
- Volume :
- 75
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 20036187
- Full Text :
- https://doi.org/10.1016/j.saa.2009.12.006