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

• Miki, Koji

  Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University

• Saiki, Kenzo

  Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University

• Umeyama, Tomokazu

  Department of Molecular Engineering, Graduate School of Engineering, Kyoto University

• Baek, Jinseok

  Department of Molecular Engineering, Graduate School of Engineering, Kyoto University

• Noda, Takeru

  Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University

• Imahori, Hiroshi

  Department of Molecular Engineering, Graduate School of Engineering, Kyoto University･Institute for Integrated Cell‐Material Sciences (iCeMS), Kyoto University

• Sato, Yuta

  Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)

• Suenaga, Kazu

  Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)

• Ohe, Kouichi

  Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University

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.

Journal

• Small

  Small 14 (26), 2018-06-27

  Wiley

Keywords

• carbon nanoring
• carbon nanotubes
• rotaxane
• supramolecular

Details

• CRID: 1050282677670143872
• NII Article ID: 120006540187
• ISSN: 16136810
• HANDLE: 2433/235352
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles