Patent ID: 7479357

Claim:
An organophotoreceptor comprising: (a) a charge transport material having a central nucleus of the formula wherein R 1 is selected from the group consisting of a sulfolanyl group, a pyrrolyl group, a pyrazolyl group, a tetrazolyl group, an indolyl group, a carbazolyl group, a triazolyl group, an imidazolyl group, a benzimidazolyl group, an indazolyl group, a benzotriazolyl group, an alkylsulfonylphenyl group, and group X, wherein X is represented by the formula and R 2 is selected from the group consisting of hydrogen, an alkyl group, and an aryl group, with the proviso that when R 1 is an alkylsulfonylphenyl group, R 2 is not hydrogen; (b) a charge generating compound; and (c) an electrically conductive substrate.