| 摘要 |
An electrophotographic photoreceptor comprising an electrically conductive substrate and a photoconductive layer formed thereon, wherein said photoconductive layer contains a compound of the formula (I): (I) wherein R1 to R18 are respectively and independently a hydrogen atom, a halogen atom, a saturated or unsaturated aliphatic hydrocarbon group, an aromatic hydrocarbon group, an alkoxy group, an aryloxy group, a dialkylamino group or a diarylamino group, wherein the aliphatic hydrocarbon group, the aromatic hydrocarbon group, the alkoxy group, the aryloxy group, the dialkylamino group and the diarylamino group may have substituents, X is a bivalent hydrocarbon group which may have substituents, each of A1 and A2 is a saturated or unsaturated aliphatic hydrocarbon group or an aromatic hydrocarbon group, or is bonded to R5 or R18 of the adjacent phenyl group to form a nitrogen-containing heterocyclic ring, wherein the aliphatic hydrocarbon group, the aromatic hydrocarbon group and the nitrogen-containing heterocyclic ring may have substituents.
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