Toward Fluorescent Memories with Nondestructive Readout: Photoswitching of Fluorescence by Intramolecular Electron Transfer in a Diaryl Ethene‐Perylene Bisimide Photochromic System

• DOI: 10.1002/anie.200802007
• Publication Date: 2008-08-05T13:13:18Z
• Authors: Martin Berberich; Ana‐Maria Krause; Michele Orlandi; Franco Scandola; Frank Würthner
• Keywords: Diarylethene; Photoinduced electron transfer

Flicking a switch: Photoinduced electron transfer (PET) occurs between the perylene and closed (but not open) form of diarylethene unit in prototype optical memory system based on photochromic diarylethene-perylene bisimide dyad (see picture). This allows three different wavelengths to be used for read, write, erase steps without destructive readout occurring by cycloreversion. Supporting information this article is available WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z802007_s.pdf or from author. Please note: The publisher responsible content functionality any supporting supplied authors. Any queries (other than missing content) should directed corresponding author article.