Huang Hong, Sun Rong, Wu Xiao-Fan, Liu Youchao, Zhan Jun-Zheng, Wang Bing-Wu, Gao Song
Spin-X Institute, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
Dalton Trans. 2023 Jun 6;52(22):7646-7651. doi: 10.1039/d3dt00625e.
A new pair of multifunctional Zn(II)-Dy(III) enantiomers based on the chiral Schiff-base ligands [,-ZnLDy(HO)(NO)] (1R2R-ZnDy) and [,-ZnLDy(HO)(NO)] (1S2S-ZnDy) (HL = phenol, 2,2'-[[(1,2/1,2)-1,2-diphenyl-1,2-ethanediyl]bis[()-nitrilomethylidyne]]bis[6-methoxy]) was synthesized and characterized. Magnetic studies indicate that 1R2R-ZnDy behaves as a single-molecule magnet. Enantiomers 1R2R-ZnDy and 1S2S-ZnDy show chiroptical activity and circularly polarized luminescence in the ,-dimethylformamide (DMF) solution. The chiral Zn(II)-Dy(III) complexes display magnetic circular dichroism signals at room temperature. Accordingly, these complexes will inspire intriguing research on single-molecule magnets with circular polarization of luminescence activity and magneto-optic effects, which will give new clues to design multifunctional molecular magnetic materials.
基于手性席夫碱配体[,-ZnLDy(HO)(NO)]（1R2R-ZnDy）和[,-ZnLDy(HO)(NO)]（1S2S-ZnDy）（HL = 苯酚，2,2'-[[(1,2/1,2)-1,2-二苯基-1,2-乙二基]双[()-次氮基甲基idyne]]双[6-甲氧基]）合成并表征了一对新型多功能Zn(II)-Dy(III)对映体。磁性研究表明1R2R-ZnDy表现为单分子磁体。对映体1R2R-ZnDy和1S2S-ZnDy在,-二甲基甲酰胺（DMF）溶液中显示出旋光活性和圆偏振发光。手性Zn(II)-Dy(III)配合物在室温下显示出磁圆二色信号。因此，这些配合物将激发对具有发光活性圆偏振和磁光效应的单分子磁体的有趣研究，这将为设计多功能分子磁性材料提供新线索。
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