Transformation from H‐ to J‐Aggregated Perylene Bisimide Dyes by Complexation with Cyanurates

Me, myself, and dye: Core-unsubstituted perylene bisimide dyes bearing a melamine hydrogen-bonding unit link with cyanurates giving H- (red, see picture) and J-aggregates (green). In solution the aggregates can interconvert on thermal treatment or by changing the stoichiometry. In solid films the green to red color change occurs upon scratching the surface. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z705385_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.