Preparation and fluorescent properties of europium (III) complexes with β-diketone ligand and 2,2-dipyridine or 1,10-phenanthroline

Dunjia Wang; Chunyang Zheng; Ling Fan

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Preparation and fluorescent properties of europium (III) complexes with β-diketone ligand and 2,2-dipyridine or 1,10-phenanthroline

机译：含β-二酮配体和2,2-二吡啶或1,10-菲咯啉的（（III）配合物的制备及荧光性质

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The β-diketone ligand, 1-(4-methoxyphenyI)-3-phenylpropane-1,3-dione (MPPD), and its binary Eu(III) complexes Eu(MPPD)_3, ternary complexes Eu(MPPD)_3-Bipy with 2,2-dipyridine (Bipy) and Eu(MPPD)_3Phen with 1,10-phenanthroline (Phen) were prepared. The complexes were characterized with by elemental analysis, FT-IR,~1H NMR, UV-vis absorption, thermogravimetric analysis (TGA), ESI-MS and fluorescence spectroscopic techniques. TGA results showed that these complexes have good thermal stability. The emission spectra for complexes 2-4 exhibited the characteristic emission bands that arise from the ~5D_0 -> ~7F_J (J=0-4) transitions of the europium ion in solid state and chloroform solution. Based on the emission spectra in solid state, the Eu(III) ion could be sensitized efficiently by the ligands to some extent, in particular, in the ternary system, the secondary ligands Bipy and Phen acting as a light-harvesting center was involved in the highly efficient energy transfer process. In addition, the experimental intensity parameters, Ω_2 and Ω_4 were calculated from the fluorescence emission spectra. The radiative decay rate A_(rad)), the nonradiative rates A_(nrad), the lifetime (t) and the luminescent quantum yield (η) were determined and analyzed.

机译：β-二酮配体1-（4-甲氧基苯基）-3-苯基丙烷-1,3-二酮（MPPD）及其二元Eu（III）配合物Eu（MPPD）_3，三元配合物Eu（MPPD）_3-Bipy制备了1,2,2-二吡啶（Bipy）和Eu（MPPD）_3Phen与1,10-菲咯啉（Phen）的混合物。通过元素分析，FT-IR，〜1H NMR，UV-vis吸收，热重分析（TGA），ESI-MS和荧光光谱技术对复合物进行表征。 TGA结果表明这些配合物具有良好的热稳定性。配合物2-4的发射光谱显示出由from离子在固态和氯仿溶液中的〜5D_0->〜7F_J（J = 0-4）跃迁引起的特征发射带。根据固态发射光谱，Eu（III）离子可以在一定程度上被配体有效敏化，特别是在三元体系中，二级配体Bipy和Phen参与了光捕获中心。高效的能量传输过程。另外，由荧光发射光谱计算实验强度参数Ω_2和Ω_4。确定并分析了辐射衰减率A_（rad）），非辐射率A_（nrad），寿命（t）和发光量子产率（η）。

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《Synthetic Metals》 |2012年第23期|共6页
作者
Dunjia Wang; Chunyang Zheng; Ling Fan;
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Europium(III) complex; P-Diketone; 1; 10-Phenanthroline; 2; 2-Dipyridine; Fluorescent property; Thermal property;

机译：III（III）配合物;对二酮;1;10-菲咯啉;2;2-二吡啶;荧光性能;热性能;

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1. Preparation and fluorescent properties of europium (III) complexes with β-diketone ligand and 2,2-dipyridine or 1,10-phenanthroline [J] . Dunjia Wang, Chunyang Zheng, Ling Fan Synthetic Metals . 2012,第23期

机译：含β-二酮配体和2,2-二吡啶或1,10-菲咯啉的（（III）配合物的制备及荧光性质
2. Symmetry correlations between crystallographic and photoluminescence study of ternary beta-diketone europium(iii) based complexes using 1,10-phenanthroline as the ancillary ligand [J] . Alexander Orbett T., Kroon Robin E., Brink Alice, Dalton transactions: An international journal of inorganic chemistry . 2019,第42期

机译：用1,10菲咯啉作为辅助配体的三元β二酮铕（III）基于铕（III）铕（III）复合物的对称相关性
3. Kinetic study of the thermal decomposition of Eu~(3+) with beta-diketone ligands and 1,10-phenanthroline or 2,2-dipyridine [J] . Crislene R.S. Morais, Antonio Gouveia Souza, Petrus A. Santa-Cruz Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2002,第1a2期

机译：β-二酮配体和1,10-菲咯啉或2,2-二吡啶对Eu〜（3+）热分解的动力学研究
4. Synthesis and Thermal Characterization of the Erbium(Ⅲ) Complex With β-diketone Ligands and 1,10-Phenanthroline or 2,2-Bipyridine [C] . Crislene R. da S. Morais, Wilton S. Lopes, Ant?nio G. de Souza, Proceedings of the 31st annual conference of the North American Thermal Analysis Society(NATAS) . 2003

机译：含β-二酮配体和1,10-菲咯啉或2,2-联吡啶的Er（Ⅲ）配合物的合成与热表征
5. The Luminescent Properties of Europium Thenoyltrifluoroacetone Complexes with 2-Phenyl-1h-Imidazo[4,5-f][1,10]Phenanthroline Based Ligands [D] . Venturo, Paul Jacob. 2020

机译：铕的发光特性罗霉氟丙酮配合物用2-苯基-1H-咪唑络合物[4,5-F] [1,10]菲芳啉基配体
6. Tetrakis(μ-6-hydroxy-1-naphthoato)bis[(6-hydroxy-1-naphthoato)(1,10-phenanthroline)europium(III)] dihydrate [O] . Chun-Sen Liu, Min Hu, Qiang Zhang 2016

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8. Electropolymerization of Ruthenium Bis(1,10-phenanthroline)(4-methyl-4'vinyl-2,2'-bipyridine) Complexes through Direct Attack on the Ligand Ring System [R] . Guarr, T. F., Anson, F. C. 1987

机译：直接攻击配体环系统对双（1,10-菲咯啉）（4-甲基-4'-乙烯基-2,2'-联吡啶）配合物的电聚合

Preparation and fluorescent properties of europium (III) complexes with β-diketone ligand and 2,2-dipyridine or 1,10-phenanthroline

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