3 years ago

Living Supramolecular Polymerization of a Perylene Bisimide Dye into Fluorescent J-Aggregates

Vladimir Stepanenko, Marius Wehner, Wolfgang Wagner, Soichiro Ogi, Frank Würthner
Self-assembly of a new, in bay-position 1,7- dimethoxy-substituted perylene bisimide (PBI) organogelator affords non-fluorescent H-aggregates at fast cooling rates and fluorescent J-aggregates at slow cooling rates. Under properly adjusted conditions the kinetically trapped "off-pathway" H-aggregates transform into the thermodynamically favored J-aggregates, a process that can be accelerated by the addition of J-aggregate seeds. Spectroscopic studies revealed a subtle interplay of pi-pi interactions and intra- and intermolecular hydrogen bonding for monomeric, H- and J-aggregated PBIs. Multiple polymerization cycles initiated from the seed termini demonstrate the living character of this chain-growth supramolecular polymerization process.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201709307

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.