申请人:Canon Kabushiki Kaisha
公开号:US05247098A1
公开(公告)日:1993-09-21
Thiophene derivatives represented by the general formula (I): ##STR1## where R is an aldehyde, carboxyl, C.sub.1-5 -alkyl ester or C.sub.1-5 -alkyl acetal group and n is 3 to 5, are prepared. These compounds are reversibly converted to their respective isomers by light irradiation, accompanied with a large shift of absorption and emission bands, thus suitable for a photo-responsive material.
通式(I)代表的噻吩衍生物:其中R为醛、羧基、C.sub.1-5-烷基酯或C.sub.1-5-烷基缩醛基团,n为3至5。这些化合物可以通过光照逆转为它们各自的异构体,伴随着吸收和发射带的大幅移动,因此适用于光响应材料。