New [2,2]Fluorenophanes Give Insights into Asymmetric Charge Transfer-Mediated Exciton Delocalization along the π-π Packing Direction

Chi Shin Wang, Yu Chen Wei, Ming Lun Pan, Cheng Ham Wu, Pi Tai Chou, Yao Ting Wu

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A series of new [2,2]fluorenophanes has been synthesized and characterized; among them, molecules of crystallographically asymmetric anti-[2.2](1,4)(4,1)fluorenophane (K2C-2) aggregate to form one-dimensional supramolecular chain structures through effective intermolecular π-π overlapping. This, in combination with the synergistic intramolecular π-π interaction, leads to prominent dual emission mediated by charge transfer (CT) exciton delocalization. Support of this new insight is given by mapping the transition density along the π-π packing direction where the intramolecular excitation and intermolecular CT coexist in K2C-2.

Original languageEnglish
Pages (from-to)8678-8683
Number of pages6
JournalChemistry - A European Journal
Volume27
Issue number34
DOIs
Publication statusPublished - 2021 Jun 16

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

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