Electron- or hole-transporting nature selected by side-chain-directed π-stacking geometry: Liquid crystalline fused metalloporphyrin dimers

Tsuneaki Sakurai, Kentaro Tashiro, Yoshihito Honsho, Akinori Saeki, Shu Seki, Atsuhiro Osuka, Atsuya Muranaka, Masanobu Uchiyama, Jungeun Kim, Sunyeo Ha, Kenichi Kato, Masaki Takata, Takuzo Aida

研究成果: Article査読

71 被引用数 (Scopus)

抄録

Novel liquid crystalline (LC) semiconductors were prepared from the copper complex of a fused porphyrin dimer as the electroactive core by attaching to its periphery dodecyl and semifluoroalkyl side chains site-specifically (P=P hetero) and semifluoroalkyl side chains alone (P=Phomo). The former and latter formed rectangular columnar and orthorhombic LC mesophases, respectively, where the stacking geometries of the π-conjugated core are quite different from one another. Although the π-electronic properties of the core units in P=Phetero and P=Phomo in solution are substantially identical to one another, transient photocurrent profiles of their LC states under time-of-flight conditions clearly showed that P=Phetero behaves as an n-type semiconductor, whereas P=P homo, in contrast, behaves as a p-type semiconductor.

本文言語English
ページ(範囲)6537-6540
ページ数4
ジャーナルJournal of the American Chemical Society
133
17
DOI
出版ステータスPublished - 2011 5 4
外部発表はい

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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