Formation of metal-assisted stable double helices in dimers of cyclic bis-tetrapyrroles that exhibit spring-like motion

Takashi Hashimoto, Takuma Nishimura, Jong Min Lim, Dongho Kim, Hiromitsu Maeda

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Bidipyrrin-bridged macrocycles, prepared from NiII-bridged dipyrrinbased nanorings by intramolecular oxidative biaryl coupling reactions, yielded [2+4]-type ZnII-assisted stable twisted-ring dimers comprising two double helices. These [2+4]-type metal complexes can be optically resolved by chiral HPLC and exhibit tunable electronic and optical properties as a result of spring-like motions. The double helices behave as glue to connect two macrocycles and as the screws of hinges to form thermally responsive synchronized spring systems.

Original languageEnglish
Pages (from-to)11653-11661
Number of pages9
JournalChemistry - A European Journal
Volume16
Issue number38
DOIs
Publication statusPublished - 2010 Oct 11

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

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