| 摘要 |
Colorant materials which exhibits useful levels of electrical photosensitivity are disclosed. These materials have the formula: <IMAGE> WHEREIN N REPRESENTS 0 OR 1, M REPRESENTS 1 OR 2, Ar represents an aromatic group, A represents an alkylene group, R1 and R2, when taken together, represent an alkylene group, R1, R 4, R5, and R6, when taken alone, each represent hydrogen, nitro, cyano, halogen, or one of various specified organo groups, and R2, when taken alone, represents hydrogen, an aromatic or an alkyl group.
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