Synthesis and luminescence properties of pyrazolone derivatives and their terbium complexes.
Luminescence
; 30(5): 677-85, 2015 Aug.
Article
em En
| MEDLINE
| ID: mdl-25352448
ABSTRACT
Seven novel pyrazolone derivatives were synthesized and characterized by (1) H NMR and (13) C NMR spectra, mass spectra, infrared spectra and elemental analysis. Their terbium complexes were prepared and characterized by elemental analysis, EDTA titrimetric analysis, UV/vis spectra, infrared spectra and molar conductivity, as well as thermal analysis. The fluorescence properties and fluorescence quantum yields of the complexes were investigated at room temperature. The results indicated that pyrazolone derivatives had good energy-transfer efficiency for the terbium ion. All the terbium complexes emitted green fluorescence characteristic of terbium ions, possessed strong fluorescence intensity, and showed relatively high fluorescence quantum yields. Cyclic voltammograms of the terbium complexes were studied and the highest occupied molecular orbital (HOMO) and lowest occupied molecular orbital (LUMO) energy levels of these complexes were estimated.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Térbio
/
Pirazolonas
/
Substâncias Luminescentes
Idioma:
En
Revista:
Luminescence
Assunto da revista:
BIOFISICA
/
BIOQUIMICA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
China