Competition between Arene–Perfluoroarene and Charge-Transfer Interactions in Organic Light-Harvesting Systems

Yanqiu Sun, Yilong LEI, Liangsheng Liao, Wenping Hu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)

Abstract

Two typical types of luminescent organic cocrystals comprising pyrene–octafluoronaphthalene (pyrene–OFN) and pyrene–1,2,4,5-tetracyanobezene (pyrene–TCNB) were developed by a simple supramolecular assembly strategy. The cocrystals exhibit distinct optical properties because of their different intermolecular interaction modes; that is, arene–perfluoroarene (AP) and charge-transfer (CT) interactions. Unexpectedly, a pyrene–TCNB system with strong CT interactions was incorporated into a pyrene–OFN host as a robust guest to generate white-light emission (WLE). In the supramolecular cocrystal system, an efficient energy-transfer process from pyrene–OFN to pyrene–TCNB occurred because of the well-matched spectra of the constituents and a desirable energy donor/acceptor (D/A) distance. The present competitive intermolecular interaction strategy could be applied to the fabrication of more complicated organic light-harvesting systems.

Original languageEnglish
Pages (from-to)10352-10356
Number of pages5
JournalAngewandte Chemie. International Edition
Volume56
Issue number35
DOIs
Publication statusPublished - 21 Aug 2017

Scopus Subject Areas

  • Catalysis
  • Chemistry(all)

User-Defined Keywords

  • arene–perfluoroarene complexes
  • charge-transfer systems
  • cocrystals
  • energy transfers
  • organic light-harvesting systems

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