Li Shu-Ying, Chen Ting, Chen Qi, Wang Dong, Zhu Guangshan
Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University Changchun 130024 P. R. China
Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS) Beijing 100190 P.R. China.
Chem Sci. 2023 Feb 10;14(10):2646-2651. doi: 10.1039/d2sc06746c. eCollection 2023 Mar 8.
Understanding the origin of homochirality in macroscopic assemblies and manipulating organizational chirality still remain a challenge. Herein, homochirality is achieved by combination of the majority-rules principle and concentration-dependent molecular assembly at the liquid/solid interface. A lower molecular concentration in solution facilitates more efficient amplification of chirality, which is formulated by a cooperative equilibrium model based on the Langmuir adsorption isotherm. Our results contribute to gain a new insight into chiral amplification in supramolecular assemblies. Particularly, a homochiral monolayer can be obtained just through modulating the molecular concentration in mixed enantiomer systems.
理解宏观组装体中同手性的起源并操控组织手性仍然是一项挑战。在此，通过多数规则原理与液/固界面处浓度依赖性分子组装的结合实现了同手性。溶液中较低的分子浓度有助于更高效地放大手性，这是由基于朗缪尔吸附等温线的协同平衡模型来阐述的。我们的结果有助于对超分子组装体中的手性放大获得新的见解。特别地，仅通过调节混合对映体体系中的分子浓度就可以获得同手性单分子层。
