Synthesis, characterization and luminescence properties of rare earth complexes with a new biphenylamide

Guo, Yanling; Dou, Wei; Wang, Yujiao; Zhou, Xiaoyan; Liu, Weisheng

doi:10.1016/j.jlumin.2012.08.016

Cited by 12 publications

(9 citation statements)

References 37 publications

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“…Infrared spectra (4000-400 cm À1 ) were recorded with KBr discs on a PerkinElmer Spectrum One spectrometer. 1 H NMR and 13 C NMR spectra were registered on a Bruker 400 MHz spectrometer using CDCl 3 or DMSO-d 6 as solvent and tetramethylsilane (TMS) as an internal standard, chemical shifts were reported as δ values in units of ppm. Mass spectra were recorded on LC-MS-Agilent 1100 series.…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

“…This may be because in terbium complexes with different substituted groups in the relevant ligands, the introduction of a donative electron group in the ligand can increase the HOMO energy levels of the corresponding complexes, whereas the introduction of an electrophilic group in the ligand can decrease the HOMO energy level of the corresponding complexes. Moreover, it can be seen that the HOMO energy levels of complexes TbL [5][6][7] (NO 3 ) 3 ·2H 2 O were both less than that of complex TbL 1 (NO 3 ) 3 ·2H 2 O, this was because of the p-π conjugation effect and the inductive effect of the halogen atom in ligands L [5][6][7] . Meanwhile, the value of Eg for complexes TbL [1][2][3][4][5][6][7] (NO 3 ) 3 ·2H 2 O was between 4.806 and 4.844 eV.…”

Section: Electrochemical Properties Studiesmentioning

confidence: 96%

“…1. There were two absorption peaks for ligand L 6 , one appeared at around 277 nm and another 335 nm, which were assigned to the π-π* and n-π* transitions, respectively, however, these two absorption peaks of complex TbL 6 (NO 3 ) 3 ·2H 2 O appeared at 282 and 338 nm, respectively. This was due to the introduction of terbium ion that enlarged the conjugation system of ligand L 6 .…”

Section: Uv/vis Spectral Studiesmentioning

confidence: 97%

“…The above results indicated that the fluorescence intensity of the terbium complex substituted by the donative electron group of the corresponding ligand was increased, whereas the fluorescence intensity of the terbium complex substituted by the electrophilic group of the corresponding ligand was decreased. Moreover, with regard to the fluorescence intensities of TbL [5][6][7] (27,28).…”

Section: Fluorescence Spectral Studiesmentioning

confidence: 99%

“…In recent years, the design and synthesis of rare earth functional coordination compounds have been hot topics in coordination chemistry (4,5). Some complexes bearing rare earth ions show very intense luminescence, which is characterized by a very narrow half-peak width, a long decay time and fine monochromic light (6).…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and luminescence properties of pyrazolone derivatives and their terbium complexes

et al. 2014

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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.

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Section: Experimental Materials and Methodsmentioning

confidence: 99%

Section: Electrochemical Properties Studiesmentioning

confidence: 96%

Section: Uv/vis Spectral Studiesmentioning

confidence: 97%

Section: Fluorescence Spectral Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and luminescence properties of pyrazolone derivatives and their terbium complexes

et al. 2014

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Synthesis, characterization and properties of salicylhydrazide–salicylacylhydrazone derivatives and their terbium complexes

Meng

Fen

et al. 2015

Luminescence

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A series of terbium complexes with salicylhydrazide-salicylacylhydrazone derivatives were synthesized and characterized by elemental analysis, IR spectra, UV/vis spectra and thermal analysis. The luminescence and electrochemical properties of the terbium complexes were investigated. The results show that all the target complexes exhibited characteristic emissions of terbium ions and the complex substituted by the chlorine has the strongest luminescence intensity with the highest quantum yield at 0.609. The introduction of donating electron groups could increase the oxidation potential and the highest occupied molecular orbital energy level of the terbium complex; however, the introduction of accepting electron groups gave the opposite result.

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Influence of different ligands on luminescence intensity and emission color of Dy(Lc)3phen(Lc = AA, MAA, BA, SA)

Zhang

Shen

Huang

2015

J Mater Sci: Mater Electron

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A series of dysprosium organic complexes with different carboxylic acid ligands Dy(Lc) 3 phen(Lc = AA, MAA, BA, SA) were synthesized. These dysprosium organic complexes were characterized by ethylene diamine tetraacetic acid titrimetric method, X-ray diffraction, fourier transform infrared spectoscopy, thermal analysis, ultraviolet absorption spectra and photoluminescence spectra to study their phase composition, physical properties and luminescent properties. The results showed that all the dysprosium organic complexes were well crystallized and exhibited good thermal stability. The luminescence properties of these dysprosium organic complexes were mainly depended on the structure of different carboxylic acid ligands. The fluorescence intensity of the dysprosium organic complexes was Dy(BA) 3 phen [ Dy 2 (SA) 3 phen 2 [ Dy(AA) 3 phen [ Dy(MAA) 3 phen. The fluorescent intensity of Dy(BA) 3 phen was higher than other dysprosium organic complexes, and the chromaticity coordinate of Dy(BA) 3 phen located in the white light area. The as-prepared dysprosium organic complexes showed excellent luminescence properties.

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Synthesis, characterization and luminescence properties of rare earth complexes with a new biphenylamide

Cited by 12 publications

References 37 publications

Synthesis and luminescence properties of pyrazolone derivatives and their terbium complexes

Synthesis and luminescence properties of pyrazolone derivatives and their terbium complexes

Synthesis, characterization and properties of salicylhydrazide–salicylacylhydrazone derivatives and their terbium complexes

Influence of different ligands on luminescence intensity and emission color of Dy(Lc)3phen(Lc = AA, MAA, BA, SA)

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