Synthesis, Spectral Characterization and Luminescent Properties of Ternary Rare Earth Nitrates Complexes with 2-Acetylpyridine-tris(2-aminoethyl)amine and Pyridine-N-oxide Ligand

2011 ◽  
Vol 322 ◽  
pp. 337-340
Author(s):  
Lian Cai Du
Keyword(s):  
Thermal Analysis ◽  
Rare Earth ◽  
Luminescent Properties ◽  
Ternary Complexes ◽  
Molar Conductivity ◽  
Lanthanide Ions ◽  
Fluorescent Properties ◽  
Tripodal Ligand ◽  
Rare Earth Nitrates ◽  
The Eu

A tripodal ligand, 2-acetylpyridine-tris(2-aminoethyl)amine (L), pyridine-N-oxide and their ternary complexes with rare earth nitrates have been synthesized. These new complexes with the general formula of Ln·L·PyNO·(NO3)3·nH2O (where Ln = La, Nd, Tb, Pr, Eu, n = 1~3 ) were characterized by elemental analysis, IR spectra, thermal analysis and molar conductivity. All the complexes are stable in air. The results show that the lanthanide ions in each complex are coordinated by nitrogen atoms of the ligand, oxygen atoms of PyNO and the nitrates. The fluorescent properties of the Eu(III) and Tb(III) complexes in solid were investigated.

Study on Syntheses and Anticoagulant Action of Rare Earth Ternary Complexes with Tryptophan and Sodium Citrate

2013 ◽  
Vol 699 ◽  
pp. 689-692
Author(s):  
Kun Jie Wang ◽  
Yan Ping Wu ◽  
Hong Xia Li ◽  
De Yi Zhang ◽  
Hui Xia Feng ◽  
...  
Keyword(s):  
Rare Earth ◽  
Elemental Analysis ◽  
Sodium Citrate ◽  
Ternary Complexes ◽  
Molar Conductivity ◽  
Constant Composition ◽  
Rare Earth Nitrates ◽  
Anticoagulant Action ◽  
The Rare Earth

Three new rare earth ternary complexes (NdLL'•4H2O, EuLL'•4H2O and LaLL'•4H2O) have been prepared with rare earth nitrates, tryptophan (L) and sodium citrate (NaL'). The characteristics of the complexes were identified by elemental analysis, IR, molar conductivity solubility and TG-DTA. The results showed the complexes have constant composition of RELL'•4H2O. And all of the rare earth ternary complexes have anticoagulant action.

The Effect of 1,10-Phenanthroline on the Luminescent Properties of Eu (III) and Tb (III) Complexes with 2-Acetylnaphthol-Hydrazinehydrate

2011 ◽  
Vol 322 ◽  
pp. 345-348
Author(s):  
Yi Min Feng
Keyword(s):  
Rare Earth ◽  
Ir Spectra ◽  
Luminescent Properties ◽  
Luminescent Intensity ◽  
Dmso Solution ◽  
Fluorescent Properties ◽  
Blue Region ◽  
Rare Earth Nitrates ◽  
Terbium Complexes ◽  
Oxygen Atoms

Four complexes have been prepared by reaction of rare earth nitrates with 2-acetylnaphthol-hydrazinehydrate (ANH) and phenanthroline. The complexes were characterized by IR spectra. The fluorescent properties of the europium and terbium complexes in solid and in DMSO solution were investigated and the effects of phenanthroline on the luminescent intensity of europium and terbium complexes also were studied. The results show that the europium and terbium ions formed stable complexes by coordinating to the nitrogen atoms and oxygen atoms of the ligands and the nitrates. And the complexes exhibited maximum fluorescence emissions in blue region.

Structural and luminescent properties of red-emitting Eu3+-doped ternary rare earth antimonates R3SbO7 (R = La, Gd, Y)

2014 ◽  
Vol 2 (28) ◽  
pp. 5559-5569 ◽  
Author(s):  
Jing Wang ◽  
Yu Cheng ◽  
Yanlin Huang ◽  
Peiqing Cai ◽  
Sun Il Kim ◽  
...  
Keyword(s):  
Rare Earth ◽  
Luminescent Properties ◽  
Luminescence Spectra ◽  
The Eu

Eu3+-doped antimonates show distinct luminescence spectra. 5D0 → 7F4, 5D0 → 7F1 and 5D0 → 7F0 are the dominant transitions for Eu3+-doped La3SbO7, Gd3SbO7 and Y3SbO7 respectively, due to different microstructures around the Eu3+ ions in the lattices.

Synthesis, luminescent properties and theoretical study of a new β-diketone and its rare earth ternary complexes

Rare Metals ◽  
2011 ◽  
Vol 30 (S1) ◽  
pp. 289-293 ◽  
Author(s):  
Xingwang Liu ◽  
Saishengtai Gao ◽  
Li Wang ◽  
Jiadong Jiang ◽  
Leijun Shen
Keyword(s):  
Rare Earth ◽  
Theoretical Study ◽  
Luminescent Properties ◽  
Ternary Complexes

scholarly journals Influence of Different Carboxylic Acid Ligands on Luminescent Properties of Eu(Lc)3phen (Lc = MAA, AA, BA, SA) Complexes

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Jing Zhang ◽  
Le Zhang ◽  
Yan Chen ◽  
Xiaogu Huang ◽  
Lixi Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Carboxylic Acid ◽  
Luminescent Properties ◽  
High Thermal Stability ◽  
Photoluminescence Spectra ◽  
Europium Complexes ◽  
Absorption Intensity ◽  
Uv Absorption Spectra ◽  
The Eu

A series of rare earth europium complexes with different carboxylic acid ligands Eu(Lc)3phen (Lc = MAA, AA, BA, SA) were synthesized. The complexes were characterized by FTIR, TG-DSC, XRD, UV absorption spectra, and photoluminescence spectra (PL) to study the structure, thermal stability, the energy absorption, and luminescent properties of the complexes. The results showed that the series complexes are all with good crystallization and relatively high thermal stability. The differences of the luminescent properties of complexes are caused by the different ligand structures. The absorption intensity of the carboxylic acid ligands, BA, was the strongest, followed by the MAA and AA and SA was the weakest. Therefore, the fluorescence intensity of the Eu(BA)3phen was the strongest, followed by the Eu(MAA)3phen and Eu(AA)3phen and the Eu2(SA)3phen2was the weakest. All complexes showed good luminescence properties.

scholarly journals The Rare Earth Metals and Their Compounds: Thermal Analysis of Rare Earth Nitrate Mixtures

2016 ◽  
Vol 24 (1) ◽  
pp. 26
Author(s):  
Laurence L. Quill ◽  
Richard F. Robey ◽  
Sam Seifter
Keyword(s):  
Thermal Analysis ◽  
Rare Earth ◽  
Rare Earth Metals ◽  
Basic Information ◽  
Melting Points ◽  
Rare Earth Nitrate ◽  
Rare Earth Nitrates ◽  
Salt Mixtures ◽  
Salt Systems ◽  
The Rare Earth

A method of analysis is proposed which utilizes thecharacteristic melting points of the hydrated salts andthe liquidus curves of the binary salt mixtures for theestimation of the composition of rare earth mixtures.Several binary salt systems were investigated, employingvery pure simple and double rare earth nitrates toprovide basic information concerning the possibilitiesof the method.

Synthesis, Fluorescence Properties of 2-Acetyl-2'-Chloroacetanilide with Rare Earth Nitrates Complexes

2011 ◽  
Vol 219-220 ◽  
pp. 574-577
Author(s):  
Xi Shi Tai ◽  
Lin Tong Wang
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Fluorescence Properties ◽  
Water Molecules ◽  
Single Crystal Diffraction ◽  
X Ray ◽  
Rare Earth Nitrates ◽  
Ft Ir ◽  
Coordinated Water ◽  
The Eu

The reaction of 2-acetyl-2'-chloroacetanilide (L) with rare earth nitrates in CH3CH2OH followed by recrystallization in CH3CH2OH gave rise to colorless block crystals materials. The complexes and ligand were analyzed by FAB, elemental analysis(C, H, N), FT-IR spectra, TG-DTA, molar conductivity and X-ray single crystal diffraction. The fluorescence properties of ligand and the Eu (Ⅲ) complex also have been investigated. The results of crystal structure and spectral data show that the rare earth ions coordinated with oxygen and nitrogen atoms of the ligand, the nitrate and coordinated water molecules. The Eu (Ⅲ) complex material shows characteristic red emissions.

Preparation and Photoluminescent Properties of Doped Ternary Europium Complexes Bearing 1-(Naphthalen-2-yl)-3-phenylpropane-1, 3-dione

2011 ◽  
Vol 239-242 ◽  
pp. 3161-3164 ◽  
Author(s):  
Yue Qin Li ◽  
Dong Mei Zhang ◽  
Hui Hua Xu ◽  
Xian Tao ◽  
Ying Zhong Shen
Keyword(s):  
Rare Earth ◽  
Ternary Complexes ◽  
Experimental Results ◽  
Lanthanide Ions ◽  
Fluorescence Properties ◽  
Europium Complexes ◽  
Luminescence Efficiency

Rare earth (RE) ternary complexes of Eu0.5Ln0.5(NPPD)3×DPQ (HNPPD = 1-(naphthalen-2-yl)-3-phenylpropane-1, 3-dione; DPQ = Dipyridobenzoquinone; Ln3+= Nd3+, Er3+, Ce3+, Dy3+), Eu1-xYx(NPPD)3×DPQ and Eu1-xLux(NPPD)3×DPQ (x= 0.0, 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by the reaction of RECl3×6H2O with HNPPD and DPQ in stoichiometry. The UV-vis and fluorescence properties of the complexes were investigated. The experimental results show that the luminescence efficiency of Eu3+complexes was enhanced by doping some other lanthanide ions.

Luminescent Properties of MgLaLiSi2O7:Eu3+ Phosphors via Sol-Gel Process

2012 ◽  
Vol 512-515 ◽  
pp. 178-181
Author(s):  
Xiu Mei Han ◽  
Deng Hui Ren ◽  
Ying Ling Wang ◽  
Gui Fang Sun ◽  
Xi Wei Qi
Keyword(s):  
Thermal Analysis ◽  
Ir Spectra ◽  
Sol Gel ◽  
Luminescent Properties ◽  
Photoluminescence Spectra ◽  
X Ray Diffraction ◽  
X Ray ◽  
Sol Gel Process ◽  
Ft Ir ◽  
The Eu

MgLaLiSi2O7:Eu3+ phosphors have been prepared through the sol-gel process. X-ray diffraction (XRD), thermogravimetric and ddifferential thermal analysis (TG-DTA), FT-IR spectra and photoluminescence spectra were used to characterize the resulting phosphors. FT-IR spectra suggested that crystallized silicates have formed in the powders annealed at 1050°C. The results of XRD indicated that the phosphors crystallized completely at 1050°C. In MgLaLiSi2O7:Eu3+ phosphors, the Eu3+ shows its characteristic red (613nm, 5D0–7F2) emissions.

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