Ultrasound-assisted construction of halogen-bonded nanosized cocrystals that exhibit thermosensitive luminescence

Dongpeng Yan, Dejan-Krešimir Bučar, Amit Delori, Bhavnita Patel, Gareth O Lloyd, William Jones, Xue Duan

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Multi-component organic nanocrystals that are comprised of two or more supramolecular building blocks can be used to extend the design and assembly scope of solid molecular materials. Herein, we report the use of ultrasonication to prepare halogen-bonded stilbene-based nano-cocrystals that exhibit different photoemission properties, including one- and two-phonon emission and fluorescence lifetimes, relative to those of macrodimensional crystals. The structural transformation from nano-cocrystals into nanocrystals upon heating results in a luminescence red-shift from greenish blue to yellow. The temperature-dependent ratiometric luminescence may allow such nano-cocrystals to be used as fluorescent sensors and thermosensitive materials.

Original languageEnglish
Pages (from-to)8213-8219
Number of pages7
JournalChemistry - A European Journal
Volume19
Issue number25
DOIs
Publication statusPublished - 17 Jun 2013

Keywords

  • fluorescence
  • halogens
  • luminescence
  • nanocrystals
  • supramolecular chemistry
  • SINGLE-CRYSTAL TRANSFORMATION
  • SMALL ORGANIC-MOLECULES
  • SUPRAMOLECULAR SYNTHONS
  • CO-CRYSTALS
  • NANOWIRES
  • EMISSION
  • SOLIDS
  • NANOCRYSTALS
  • FLUORESCENCE
  • STRATEGY

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