Fluorescent Dipoles with Simple Structures

  • ChemPubSoc Europe Logo
  • Author: Angewandte Chemie International Edition
  • Published Date: 20 May 2019
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Fluorescent Dipoles with Simple Structures

Fluorescent dyes have applications, e.g., in light-emitting devices, light harvesting, and solar cells, or as labels in the life sciences. Understanding fluorescence and fluorescence quenching is important for the design of new fluorescent dyes. High stability, high dipole moments, and controlled redox properties are useful for these applications.

Beate Paulus, Siegfried Eigler, Freie Universität Berlin, Germany, Ute Resch‐Genger, Bundesanstalt für Materialforschung und -prüfung (BAM), Belin, Germany, and colleagues have synthesized diaminodicyanoquinone derivatives (examples pictured) that can be used as fluorescent dyes with quantum yields over 90 %. The dyes were synthesized from 7,7,8,8-tetracyanoquinodimethane (TCNQ) by reacting it with pyrrolidine and different diamines.

The researchers attribute the high fluorescence yields to restricted intramolecular rotations in benzene-substituted diaminodicyanoquinones (pictured), where the rotational barriers are high. According to the team, diaminodicyanoquinones are highly fluorescent dyes with high dipole moments. Their versatile chemical structure could allow their integration in new molecular architectures with unique photophysical features.


Article Views: 1176

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter

A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH