| 具有慢磁驰豫和发光性质的基于多胺酚配体的Dy(Ⅲ)和Zn/Ni-Dy(Ⅲ)配合物 | |
| Dy(Ⅲ) and Zn/Ni-Dy(Ⅲ) Complexes Derived from Polyamine Phenol Ligand with Slow Magnetic Relaxation and Luminescent Properties | |
| 摘要: 合成了4个新的基于多胺酚配体的Dy（Ⅲ）和Zn/Ni-Dy（Ⅲ）配合物：[Dy（CH3OCH3）L]（1），[Dy2（μ-H2O）L2]（2），[Zn2DyL2]ClO4·H2O（3）和[Ni2DyL2]ClO4·H2O（4）（H3L=N，N'，N″-三（3，5-二甲基-2-羟基苯酚）-1，4，7-三氮杂环壬烷）。X射线单晶衍射分析表明，配合物1和2分别为单核和双核Dy（Ⅲ）配合物，3和4为M-Dy（Ⅲ）-M三核配合物（M=Zn（3），Ni（4））。磁性测试表明，配合物1和2具有场诱导的慢磁弛豫行为，且2具有多个磁弛豫过程，配合物3和4中没有观察到明显的慢磁弛豫行为。荧光测试表明，配合物1~3具有Dy（Ⅲ）离子典型的窄带特征发射，由于Ni（Ⅱ）离子的荧光猝灭作用，配合物4没有明显的荧光产生。 | |
| 关键词: 稀土配合物 慢磁弛豫行为 发光 磁性-发光双功能分子材料 | |
| 基金项目: 国家自然科学基金（No.21761012、21501077）资助项目。 | |
| Abstract: Four Dy(Ⅲ) and Zn/Ni-Dy(Ⅲ) complexes with polyamine phenol ligand were synthesized and structurally characterized, namely[Dy(CH3OCH3)L] (1),[Dy2(μ-H2O)L2] (2),[Zn2DyL2]ClO4·H2O (3) and[Ni2DyL2]ClO4·H2O (4) (H3L=N,N',N″-tris(3,5-dimethyl-2-hydroxybenzyl)-1,4,7-triazacyclononane). X-ray crystallographic analysis reveals that 1 and 2 take mononuclear and binuclear structures, respectively, and both 3 and 4 take trinuclear M-Dy(Ⅲ)-M structures (M=Zn (3), Ni (4)). Magnetic measurements showed that complexes 1 and 2 exhibited field-induced slow magnetic relaxation behaviours, while 2 had multiple magnetic relaxation processes. However, no obvious slow magnetic relaxation behaviors were observed in 3 and 4. Fluorescence analyses reveal that complexes 1~3 have narrow-band characteristic emissions of Dy(Ⅲ) ions, but no significant emission was observed in 4 because of the fluorescence quenching effect of Ni(Ⅱ) ions. | |
| Keywords: lanthanide complex slow magnetic relaxation luminescence magnetic-luminescent material | |
| 投稿时间：2019-08-25 修订日期：2020-01-13 | |
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| 易文海,胡俊杰,张佳丽,温和瑞,刘遂军,李允伍.具有慢磁驰豫和发光性质的基于多胺酚配体的Dy(Ⅲ)和Zn/Ni-Dy(Ⅲ)配合物[J].无机化学学报,2020,36(4):607-619. | |
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