Citation: WANG Li-Li, YANG Qian-Ying, HAN Li-Zhi, ZHANG Xiao-Peng, CHEN Xin-Han, SHI Zai-Feng. Syntheses and Spectroscopic Properties of Chiral Dinuclear Eu(Ⅲ) Complexes[J]. Chinese Journal of Inorganic Chemistry, ;2020, 36(2): 352-360. doi: 10.11862/CJIC.2020.020 shu

Syntheses and Spectroscopic Properties of Chiral Dinuclear Eu(Ⅲ) Complexes

1.
College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment&Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, China
2.
College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China

Corresponding author: ZHANG Xiao-Peng, xpzhang@hainnu.edu.cn CHEN Xin-Han, xhchen@njfu.edu.cn
Received Date: 1 July 2019
Revised Date: 6 October 2019

Figures(7)

Circularly polarized luminescence materials based on emissive Eu(Ⅲ) complexes have attracted considerable attention in 3D-displays and bioresponsive imaging. In this work, we design and report the syntheses of a pair of chiral carboxylic-containing 2, 2'-bipyridine ligands ((+)-L and (-)-L). Through reaction with highly emissive β-diketone Eu(Ⅲ) complexes[Eu(TTA)₃]·2H₂O (TTA=2-thenoyltrifluoroacetone), a couple of chiral dinuclear Eu(Ⅲ) enantiomers, [Eu₂((+)-L)₂(TTA)₂(C₂H₅OH)₂] ((+)-1) and[Eu₂((-)-L)₂(TTA)₂(C₂H₅OH)₂] ((-)-1), were prepared, and the structure of (+)-1 was confirmed by single-crystal X-ray diffraction. The absorption, emission and chiroptical properties of (+)-1 and (-)-1 were investigated, and distinct CPL activities were clearly detected.
- circularly polarized luminescence,
- dinuclear Eu(Ⅲ) complex,
- chiral complex,
- pinene group,
- carboxylic-containing 2, 2'-bipyridine
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沈阳化工大学材料科学与工程学院沈阳 110142