Dynamic rotational oscillation of cerium(IV) bis(porphyrinate) and its control by diamine guest binding with positive homotropic allosterism

Masato Ikeda, Yohei Kubo, Kousei Yamashita, Tomohiro Ikeda, Masayuki Takeuchi, Seiji Shinkai

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We have synthesized a porphyrin oscillator (1) composed of cerium(IV) bis(porphyrinate) bearing four peripheral zinc(II) porphyrinates. The rotational oscillation frequency of the porphyrin was evaluated in solution with and without the presence of diamine guest 2 by variable temperature NMR spectroscopy. The results established that the rotational frequency can be controlled by added guest utilizing positive homotropic allosterism.

Original languageEnglish
Pages (from-to)1883-1886
Number of pages4
JournalEuropean Journal of Organic Chemistry
Issue number12
DOIs
Publication statusPublished - Jun 22 2007

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry

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