Bottom-up realization of a porous metal-organic nanotubular assembly

Kazuya Otsubo, Yusuke Wakabayashi, Jun Ohara, Shoji Yamamoto, Hiroyuki Matsuzaki, Hiroshi Okamoto, Kiyofumi Nitta, Tomoya Uruga, Hiroshi Kitagawa

Research output: Contribution to journalArticlepeer-review

163 Citations (Scopus)


Nanotubes are generally prepared from their constituent elements at high temperatures, and thus it is difficult to control their size, shape and electronic states. One useful approach for synthesizing well-defined nanostructures involves the use of building blocks such as metal ions and organic molecules. Here, we show the successful creation of an assembly of infinite square prism-shaped metal-organic nanotubes obtained from the simple polymerization of a square-shaped metal-organic frame. The constituent nanotube has a one-dimensional (1D) channel with a window size of 5.9×5.9Å 2, and can adsorb water (H2O) and alcohol vapours, whereas N 2 and CO2 do not adhere. It consists of four 1D covalent chains that constitute a unique electronic structure of charge-density wave (CDW) quartets on crystallization. Moreover, exchanging structural components and guest molecules enables us to control its semiconductive bandgap. These findings demonstrate the possibility of bottom-up construction of new porous nanotubes, where their degrees of freedom in both pore space and framework can be used.

Original languageEnglish
Pages (from-to)291-295
Number of pages5
JournalNature Materials
Issue number4
Publication statusPublished - 2011 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Bottom-up realization of a porous metal-organic nanotubular assembly'. Together they form a unique fingerprint.

Cite this