Unique Tube-Ring Interactions: Complexation of Single-Walled Carbon Nanotubes with Cycloparaphenyleneacetylenes

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Koji MikiKouichi Ohe

Abstract

Carbon nanotubes (CNTs) interlocked by cyclic compounds through supramolecular interaction are promising rotaxane-like materials applicable as 2D and 3D networks of nanowires and disease-specific theranostic agents having multifunctionalities. Supramolecular complexation of CNTs with cyclic compounds in a "ring toss'' manner is a straightforward method to prepare interlocked CNTs; however, to date, this has not been reported on. Here, the "ring toss" method to prepare interlocked CNTs by using π-conjugated carbon nanorings: [8]-, [9]-, and [10]cycloparaphenyleneacetylene (CPPA) is reported. CPPAs efficiently interact with CNTs to form CNT@CPPA complexes, while uncomplexed CPPAs can be recovered without decomposition. CNTs, which tightly fit in the cavities of CPPAs through convex-concave interaction, efficiently afford "tube-in-ring"-type CNT@CPPA complexes. "Tube-in-ring"-type and "ring-on-tube"-type complexation modes are successfully distinguished by spectroscopic, thermogravimetric, and microscopic analyses.

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Citations

Jan 29, 2019·Chemistry : a European Journal·Shinji Toyota, Eiji Tsurumaki
Jan 24, 2019·Chemistry : a European Journal·Serxho Selmani, Derek J Schipper
Apr 5, 2019·Chemistry : a European Journal·Fabien LucasCyril Poriel
Jun 14, 2019·Angewandte Chemie·Youzhi Xu, Max von Delius
Oct 28, 2019·Chemistry : a European Journal·Koji Miki, Kouichi Ohe
Aug 17, 2019·Chemical Society Reviews·Sofía Mena-Hernando, Emilio M Pérez
Oct 13, 2018·Chemical Science·Leire de Juan-FernándezDirk M Guldi
Dec 20, 2019·Chemical Science·Mingyang JiJon R Parquette
Sep 28, 2020·Angewandte Chemie·Hironori MatsukiKenji Kobayashi
Oct 5, 2021·Chemical Communications : Chem Comm·Xin ZhouSemin Lee
Nov 27, 2021·Journal of the American Chemical Society·Sara Moreno-Da SilvaEnrique Burzurí

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