申请人:Idemitsu Kosan Co., Ltd.
公开号:US20030072966A1
公开(公告)日:2003-04-17
Materials for organic electroluminescence devices and organic electroluminescence devices which exhibit high efficiency of light emission and have a long life and excellent heat resistance, novel compounds and processes for producing the materials for organic electroluminescence devices are provided.
The material for organic electroluminescence devices is represented by following general formula [1]:
general formula [1]
1
wherein A represents a substituted or unsubstituted arylene group having 22 to 60 carbon atoms, X
1
to X
4
each independently represent a substituted or unsubstituted arylene group having 6 to 30 carbon atoms, X
1
and X
2
may be bonded to each other, X
3
and X
4
may be bonded to each other, Y
1
to Y
4
each independently represent an organic group represented by general formula [2], a to d each represent an integer of 0 to 2 and, when the arylene group represented by A has 26 or less carbon atoms, a+b+c+d>0 and the arylene group does not contain two or more anthracene nucleus; general formula [2] being:
general formula [2]
2
wherein R
1
to R
4
each independently represent hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, cyano group or form a triple bond by a linkage of R
1
and R
2
or R
3
and R
4
, Z represents a substituted or unsubstituted aryl group having 6 to 20 carbon atoms and n represents 0 or 1.
提供了用于有机电致发光器件的材料和发光效率高、寿命长、耐热性优异的有机电致发光器件、新型化合物和生产有机电致发光器件材料的工艺。
有机电致发光器件材料由以下通式表示[1]:
通式 [1]
1
其中 A 代表具有 22 至 60 个碳原子的取代或未取代的芳烯基团,X
1
至 X
4
各自独立地代表具有 6 至 30 个碳原子的取代或未取代的芳烯基,X
1
和 X
2
可以相互键合,X
3
和 X
4
可以相互结合,Y
1
与 Y
4
各自独立地代表通式[2]所代表的有机基团,a 至 d 各自代表 0 至 2 的整数,当 A 所代表的芳烯基团具有 26 个或更少的碳原子时,a+b+c+d>0,且芳烯基团不包含两个或更多的蒽核;通式[2]为:
通式[2]
2
其中 R
1
至 R
4
各自独立地代表氢原子、具有 1 至 20 个碳原子的取代或未取代的烷基、具有 6 至 20 个碳原子的取代或未取代的芳基、氰基或通过 R 1 的连接形成三键
1
和 R
2
或 R
3
和 R
4
Z 代表具有 6 至 20 个碳原子的取代或未取代芳基,n 代表 0 或 1。