Direct Observation of Excimer-Mediated Intramolecular Electron Transfer in a Cofacially-Stacked Perylene Bisimide Pair

Jooyoung Sung, Agnieszka Nowak-Król, Felix Schlosser, Benjamin Fimmel, Woojae Kim, Dongho Kim, Frank Würthner

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

We have elucidated excimer-mediated intramolecular electron transfer in cofacially stacked PBIs tethered by two phenylene-butadiynylene loops. The electron transfer between energetically equivalent PBIs is revealed by the simultaneous observation of the PBI radical anion and cation bands in the transient absorption spectra. The fluorescence decay time of the excimer states is in good agreement with the rise time of PBI radical bands in transient absorption spectra suggesting that the electron transfer dynamics proceed via the excimer state. We can conclude that the excimer state effectuates the efficient charge transfer in the cofacially stacked PBI dimer.

Original languageEnglish
Pages (from-to)9029-9032
Number of pages4
JournalJournal of the American Chemical Society
Volume138
Issue number29
DOIs
Publication statusPublished - 2016 Jul 27

All Science Journal Classification (ASJC) codes

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

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