Wan Qingyun, Xiao Xin-Shan, To Wai-Pong, Lu Wei, Chen Yong, Low Kam-Hung, Che Chi-Ming
HKU-CAS Joint Laboratory on New Materials, State Key Laboratory of Synthetic Chemistry, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.
Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
Angew Chem Int Ed Engl. 2018 Dec 21;57(52):17189-17193. doi: 10.1002/anie.201811943. Epub 2018 Nov 27.
The chirality of supramolecular polymeric materials is subtly affected by a delicate balance among various non-covalent interactions, the details of which are inadequately understood. Now, a fine balance of intermolecular interactions, including closed-shell metal-metal, dispersive and electrostatic interactions, is used to direct the delicate orientation of monomeric building blocks, thereby achieving the successful preparation of different nanostructures with distinct supramolecular chirality. Moreover, kinetically trapped and thermodynamically stable aggregates were monitored over time in the supramolecular polymerization of cationic Pt complexes. The dynamic self-assembly process can be successfully controlled by modifying the counteranion and solvent composition. A chiral doping approach can also be used to induce the chirality of an achiral Pt complex at the supramolecular level.
超分子聚合物材料的手性受到各种非共价相互作用之间微妙平衡的细微影响，而其细节尚未得到充分理解。现在，分子间相互作用的精细平衡，包括闭壳金属-金属、色散和静电相互作用，被用于引导单体结构单元的精细取向，从而成功制备出具有不同超分子手性的不同纳米结构。此外，在阳离子铂配合物的超分子聚合过程中，对动力学捕获和热力学稳定的聚集体进行了长期监测。通过改变抗衡阴离子和溶剂组成，可以成功控制动态自组装过程。手性掺杂方法也可用于在超分子水平上诱导非手性铂配合物的手性。
