[Problems] To provide a novel compound having a high carrier mobility and is useful as a charge transporting agent which not only makes it possible to stably form a photosensitive layer without precipitating crystals or without developing pinholes when the photosensitive layer is being formed but also makes it possible to form an organic photosensitive material for electrophotography of a high sensitivity and a low residual potential.
[Means for Solution] An indole derivative represented by the following general formula (1),
wherein R1 and R2 are alkyl groups, k is an integer of 0 to 3, j is an integer of 0 to 4, a ring Z is a 5- to 6-membered ring and is, specifically, a cyclopentane ring, and X1 and X2 are hydrocarbon groups having at least one ethylenically unsaturated bond.
[问题] 提供一种具有高载流子迁移率并可用作电荷传输剂的新型化合物,它不仅可以稳定地形成感光层,在形成感光层时不会析出晶体或产生针孔,而且还可以形成一种高灵敏度和低残留电位的电致发光用有机感光材料。
[解决方法] 由以下通式(1)表示的
吲哚衍
生物、
其中,R1 和 R2 是烷基,k 是 0 至 3 的整数,j 是 0 至 4 的整数,环 Z 是 5 至 6 元环,特别是
环戊烷环,X1 和 X2 是至少有一个
乙烯不饱和键的烃基。