1,3-Bisarylbutadienes: Novel Thermally Irreversible Photochromic System
作者:Yasushi Yokoyama、Sujen Man Shrestha、Yayoi Yokoyama
DOI:10.1080/15421400590947018
日期:2005.6.1
ABSTRACT Novel thermallyirreversiblephotochromic compounds 1O , 2O and 3O based on 1,3-bisarylbutadiene system were synthesized. The closed ring-forms 1C and 2C showed absorption maximum at 445 nm, while the closed ring-form 3C , a methyl group of 2C on C-5 of thienyl ring was replaced with a formyl group, showed the absorption maximum at 500 nm.