Self-assembly and luminescence of trinuclear lanthanide based supramolecular circular helicates
Self-assembly and luminescence of trinuclear lanthanide based supramolecular circular helicates
复制标题
三核镧系元素超分子圆形螺旋的自组装和发光
DOI：
10.1039/d1cc03376j
复制
发表时间：
2021-08-11
影响因子：
4.9
通讯作者：
Huang, Wei
中科院分区：
文献类型：
--
作者：
Chang, Fei-fan;Feng, Fan-da;Huang, Wei
采用超分子亚组元自组装法合成了一系列三核稀土环状螺旋配合物[Ln（3）L（3）] Cl-3。光物理研究表明，独特的螺旋双四齿1，29-二醛配体L2-可以作为Sm-III，Eu-III，Nd-III和Yb-III离子的有效敏化剂，由于配体的壳型封闭，使它们成为第一个显示近红外镧系荧光的环状螺旋化合物。
A series of trinuclear lanthanide circular helicates [Ln(3)L(3)]Cl-3 have been synthesized via supramolecular subcomponent self-assembly. Photophysical studies demonstrate that the unique helical bis-tetradentate 1,29-dialdehyde ligand L2- could serve as an effective sensitizer for Sm-III, Eu-III, Nd-III and Yb-III ions exhibiting efficient characteristic fluorescence emission because of the shell-type blocking of the ligand, which makes them the first circular helicates exhibiting near-infrared lanthanide fluorescence.