Thermal e / Z Isomerization in First Generation Molecular Motors

Shunsuke Kuwahara, Yuri Suzuki, Naoya Sugita, Mari Ikeda, Fumi Nagatsugi, Nobuyuki Harada, Yoichi Habata

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Determination of a thermal E/Z isomerization barrier of first generation molecular motors is reported. Stable (E)-1a directly converts to stable (Z)-1c without photochemical E/Z isomerization. The activation Gibbs energy of the isomerization was determined to be 123 kJ mol-1 by circular dichroism spectral changes. Density functional theory calculations show that (Z)-1c is ∼11.4 kJ mol-1 more stable than (E)-1a.

Original languageEnglish
Pages (from-to)4800-4804
Number of pages5
JournalJournal of Organic Chemistry
Issue number8
Publication statusPublished - 2018 Apr 20

ASJC Scopus subject areas

  • Organic Chemistry


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