申请人:Horino Takeru
公开号:US20130102775A1
公开(公告)日:2013-04-25
The present invention is a photochromic material formed of a biimidazole compound represented by general formula (1-1):
(where, R
4
and R
5
respectively and independently represent a halogen atom or alkyl group, R
1
to R
3
and R
6
to R
8
respectively and independently represent a hydrogen atom, halogen atom, alkyl group, fluoroalkyl group, hydroxyl group, alkoxyl group, amino group, alkylamino group, carbonyl group, alkylcarbonyl group, nitro group, cyano group or aryl group, Ar
1
to Ar
4
respectively and independently represent a substituted or unsubstituted aryl group, R
4
may form a condensed, substituted or unsubstituted aryl ring with R
3
, and R
5
may form a condensed, substituted or unsubstituted aryl ring with R
6
).
本发明涉及一种由一般式(1-1)所表示的双咪唑化合物构成的光致变色材料:(其中,R4和R5分别且独立地代表卤素原子或烷基基团,R1至R3和R6至R8分别且独立地代表氢原子、卤素原子、烷基基团、氟烷基基团、羟基、烷氧基、氨基、烷基氨基、羰基、烷基羰基、硝基、氰基或芳基,Ar1至Ar4分别且独立地代表取代或未取代的芳基,R4可能与R3形成含有取代或未取代芳环的缩合物,而R5可能与R6形成含有取代或未取代芳环的缩合物)。