Limited photochromism in covalently linked double 1,2-dithienylethenes

✍ Scribed by Andrea Peters; Neil R Branda

• Book ID: 101353769
• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 81 KB
• Volume: 10
• Category: Article
• ISSN: 1616-301X
• DOI: 10.1002/1099-0712(200011/12)10:6<245::aid-amo422>3.0.co;2-o

✦ Synopsis

Only one photo-induced cyclization reaction occurs when two 1,2-dithienylethene photochromes are covalently joined. Attempts made to ring-close the second photochrome by prolonged irradiation quantitatively produced a rearranged product that could not be photobleached.