Mechanically interlocked porphyrin gears propagating two different rotational frequencies

Soichiro Ogi, Tomohiro Ikeda, Rie Wakabayashi, Seiji Shinkai, Masayuki Takeuchi

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We report a new supramolecular rotor (1), in which a lanthanum(III) bis(porphyrinate)s double-decker (LaDD) bears two porphyrinatorhodium(III)-based rotors whose planes aresituated orthogonally to one another. In [D 2]dichloromethane, 1H NMR spectral results indicated that rotational information was transmitted from the LaDD rotor to two porphyrinatorhodium(III)-based rotors through mechanical interaction of the teeth of the rotors. Mechanical interaction was achieved among the multiple rotors in 1 even after switching the rotational activity of the LaDD rotor by using [D5]pyridine. The spatial arrangement of the two porphyrinatorhodium(III)-based rotors is a critical factor in maintaining mechanical interaction between multiple molecular rotors when changing the dynamic properties of one rotor.

Original languageEnglish
Pages (from-to)1831-1836
Number of pages6
JournalEuropean Journal of Organic Chemistry
Issue number10
Publication statusPublished - Apr 2011

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry


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