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Updated: Dec 30, 2025

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Elucidation of Intramolecular Through-Space Electronic Communication in a Propeller-Shaped Molecule
Takuya Kodama1, Yasukazu Hirao1, Tomohiko Nishiuchi1
1Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
Abstract:
A novel π-extended trinaphtho[3.3.3]propellane (TNP) derivative was prepared and through-space electronic communication in its radical cation species was characterized by electrochemical and spectroscopic methods. Cyclic voltammetry and UV/Vis-NIR titrations suggested weak electronic communication among the three aromatic rings. Variable-temperature ESR measurements of the radical cation showed a drastic change in the spectra in the range of 230-180 K, indicating hopping-type spin delocalization that would originate from migration of a counter anion.
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