| 摘要 |
1,4-Dithioketo-pyrrolo-¢3,4-c!-pyrrole Derivatives Compounds of formula (I) (1) wherein A and B are identical or different radicals of formula (2) (2) wherein each of X, Y and Z independently is a hydrogen or halogen atom, trifluoromethyl, cyano, C1-C12alkyl, C1-C12alkoxy, C1-C12-alkylmercapto, C2-C6alkoxycarbonyl or C2-C6dialkylamino group, or is a phenoxy, phenylmercapto or phenoxycarbonyl group, each of which is unsubstituted or substituted by halogen, C1-C6alkyl or C1-C6alkoxy, at least one of the substituents X, Y and Z being a hydrogen atom, are particularly suitable as photoconductive substances. |
