Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730000, China.
Inorg Chem. 2021 Feb 15;60(4):2764-2770. doi: 10.1021/acs.inorgchem.0c03617. Epub 2021 Feb 1.
The transfer of configuration information from supramolecular helices is a ubiquitous phenomenon in nature. DNA and proteins often change their helical structure in response to particular external stimuli and can activate important related events through sophisticated mechanisms. Attempts to create artificial multiple-stranded helicates that can adjust the configuration under external stimuli have also met with limited success. Using a simple ligand, we now show multiple-stranded lanthanide helicates that transform efficiently. Lanthanide and ligand are successfully self-assembled into different multiple helical supermolecular clusters using different templates. Additionally, these intelligent supermolecular transformers can also be transformed by different external stimuli and realize the selective recognition and fixation of the corresponding ions and molecules.
从超分子螺旋中传递构象信息是自然界中普遍存在的现象。DNA 和蛋白质经常根据特定的外部刺激改变其螺旋结构，并通过复杂的机制激活重要的相关事件。人们试图创造能够在外部刺激下调节构象的人工多链螺旋螯合物，但取得的成功有限。现在，我们使用一种简单的配体，展示了能够有效转化的多链镧系元素螺旋螯合物。镧系元素和配体使用不同的模板成功地自组装成不同的多螺旋超分子簇。此外，这些智能超分子转换器还可以通过不同的外部刺激进行转换，并实现对相应离子和分子的选择性识别和固定。
