The present invention provides a p-terphenyl compound of formula (3):
wherein
R7 and R8
each independently are H, alkyl, aralkyl, halogen or optionally substituted phenyl; and
R9
is H, alkyl, alkoxy, aralkyl, halogen or phenyl; and
Ar
is a bivalent group of optionally substituted aromatic hydrocarbon (excluding indan);
with the proviso that if Ar is phenyl and either one of R7 and R8 is H, then the other is a substituent group which is different from R9 or is the same having a different substituted position.
Also, the invention provides the use of the p-terphenyl compound of formula (3) as a charge transporting agent.
本发明提供了一种式(3)的
对三联苯化合物:
其中
R7 和 R8
各自独立地为 H、烷基、芳烷基、卤素或任选取代的苯基;以及
R9
是 H、烷基、烷氧基、芳烷基、卤素或苯基;以及
Ar
是任选取代的
芳香烃(不包括
茚)的二价基团;
但条件是,如果 Ar 是苯基,且 R7 和 R8 中的一个是 H,则另一个是与 R9 不同的取代基,或者是具有不同取代位置的相同取代基。
此外,本发明还提供了式 (3) 的
对三联苯化合物作为电荷传输剂的用途。