Metal–organic tube or layered assembly: reversible sheet-to-tube transformation and adaptive recognition. Issue 36 (17th August 2020)

• Record Type: Journal Article
• Authors: Tian, Jiayue; Liu, Luyao; Zhou, Kang; Hong, Zixiao; Chen, Qihui; Jiang, Feilong; Yuan, Daqiang; Sun, Qingfu; Hong, Maochun
• Is Part Of: Chemical science. Volume 11:Issue 36(2020)
• Page Start: 9818
• Page End: 9826
• Publication Date: 2020-08-17
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0sc01176b
• Languages: English
• ISSNs: 2041-6520

Abstract

Abstract : A new strategy for preparing metal–organic tubes with reversible sheet-to-tube transformation character has been developed. The new-formed tube can selectively recognize and separate guest molecules with similar size. Abstract : Rational preparation of an adaptive cavity-like enzyme is a great challenge for chemists. Herein, a new self-assembly strategy for the rational preparation of metal–organic tubes with nano-channels has been developed; both 1D metal–organic tube and corresponding 2D layered assemblies can be selectively synthesized driven by different templates; reversible sheet-to-tube transformation can be realized and the key intermediate has been identified. Furthermore, the newly formed nano-channel displays excellent polarity-selectivity for encapsulation of guest molecules, and can be further expanded or contracted through guest-driven adaptive deformation; even induced by very similar guest molecules, the adaptive deformations can also be obviously distinguished. Finally, the key chemicals benzene/hexane with a similar size can also be effectively separated by such nano-channels in the liquid phase. Our work not only provides a new synthetic strategy for the rational synthesis of metal–organic tubes with a reversible sheet-to-tube transformation character, but also gives a potential method for the construction of adaptive host-like enzymes and an in-depth understanding of the nature of adaptive host and guest molecules.