Supramolecular Chiroptical Switches Based on Achiral Molecules

Authors

  • Yunfeng Qiu,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry Chinese Academy of Sciences Beijing, 100190 (PR China)
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  • Penglei Chen,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry Chinese Academy of Sciences Beijing, 100190 (PR China)
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  • Peizhi Guo,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry Chinese Academy of Sciences Beijing, 100190 (PR China)
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  • Yuangang Li,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry Chinese Academy of Sciences Beijing, 100190 (PR China)
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  • Minghua Liu

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry Chinese Academy of Sciences Beijing, 100190 (PR China)
    • Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry Chinese Academy of Sciences Beijing, 100190 (PR China).
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  • This work was supported by the National Natural Science Foundation of China (No. 20533050), the Basic Research Development Program (2007CB808005), and the Fund of the Chinese Academy of Sciences.

Abstract

Chirality plays an important role in biological and material sciences. By introducing chiral elements into functional materials, new properties are created and an increase in information density can be achieved. Chiral properties of functional materials do not only rely on molecular structure, but also on supramolecular interaction between the building blocks. In contrast to the generally accepted opinion that chiral systems should include chiral molecules, this Research News introduces the role of achiral molecules in realizing chiral properties in films and gel-like materials. Even a system that is entirely composed of achiral molecules can exhibit interesting chiroptical properties in supramolecular ultrathin films. This article demonstrates how achiral molecules can be assembled into supramolecular chiral films and organogels. It further shows how the incorporated achiral molecules can be used to switch the chiral properties of these supramolecular films and organogels.

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