TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Arrangement: The electroluminescent arrangement comprises at least one the compound (I) in a hole-injecting layer or as part of a transparent electrode.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No general method for preparation of the compound (I) is given. Preferred Definitions:    R1 and R2=G1 or -CH2-1,4-phenylene-CF3;    G1=1-methylethyl, 1-methylpropyl, 2-methylpropyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1-methylhexyl, 1-methylhexyl, 2-methylhexyl, 3-methylhexyl, 4-methylhexyl, 1-methylheptyl, 1-methylheptyl, 2-methylheptyl, 3-methylheptyl, 4-methylheptyl, 4-methylheptyl, 1-methyloctyl, 1-ethylpropyl, 1-ethylbutyl, 1-ethylpentyl, 1-ethylhexyl, 1-ethylheptyl, 1-ethyloctyl, 1-propyl butyl, 1-propylpentyl, 1-propylhexyl, 1-propylheptyl, 1-propyloctyl, 1-butylpentyl, 1-butylhexyl, 1-butylheptyl, 1-butyloctyl, 1-pentylhexyl, 1-pentylheptyl, 1-pentyloctyl, 1-hexylheptyl, 1-hexyloctyl or 1-heptyloctyl;    X1 and X2=G1 or n-C3F7, n-C4F9, n-C5F11, n-C6F13, CF(CF3)2, C(CF3)3, CF2CF(CF3)2, CF(CF3)(C2F5), CH2-CF3, CH2-C2F5, CH2-(n-C3F7), CH2-(n-C4F9), CH2-(n-C5F11), CH2-(n-C6F13), CH2-CF(CF3)2, CH2-C(CF3)3, CH2-CF2CF(CF3)2, CH2-CF(CF3)(C2F5), CH2-CH2-CF3, CH2-CH2-C2F5, CH2-CH2-(n-C3F7), CH2-CH2-(n-C4F9), CH2-CH2-(n-C5F11), CH2-CH2-(n-C6F13), CH2-CH2-CF(CF3)2, CH2-CH2-C(CF3)3, CH2-CH2-CF2CF(CF3)2, CH2-CH2-CF(CF3)(C2F5), NH(n-C3F7), NH(n-C4F9), NH(n-C5F11),NH(n-C6F13), NH(CF(CF3)2), NH(C(CF3)3), NH(CF2CF(CF3)2), NH(CF(CF3)(C2F5)), NH(CH2-CF3), NH(CH2-C2F5), NH(CH2-(n-C3F7)), NH(CH2-(n-C4F9)), NH(CH2-(n-C5F11)), NH(CH2-(n-C6F13)), NH(CH2-CF(CF3)2), NH(CH2-C(CF3)3), NH(CH2-CF2CF(CF3)2), NH(CH2-CF(CF3)(C2F5)), NH(CH2-CH2-CF3), NH(CH2-CH2-C2F5), NH(CH2-CH2-(n-C3F7)), NH(CH2-CH2-(n-C4F9)), NH(CH2-CH2-(n-C5F11)), NH(CH2-CH2-(n-C6F13)), NH(CH2-CH2-CF(CF3)2), NH(CH2-CH2-C(CF3)3), NH(CH2-CH2-CF2CF(CF3)2), NH(CH2-CH2-CF(CF3)(C2F5)), F, Cl, Br or CN.    Provided that at least one of the radicals R1, R2, X1 or X2 is G1.    SPECIFIC COMPOUNDS - 36 Compounds are disclosed as the compound (I) e.g. 4,8-dichloro-2,6-bis-(2,2,3,3,4,4,4-heptafluorobutyl)-pyrrolo(3,4-f)isoindole-1,3,5,7-tetraone (I'), 2,6-bis(2,2,3,3,4,4,4-heptafluorobutyl)-1,3,5,7-tetraoxo-1,2,3,5,6,7-hexahydropyrrolo(3,4-f)isoindole-4,8-dicarbonitrile, 4,8-dichloro-2,6-bis(2,2,2-trifluoroethyl)pyrrolo(3,4-f)isoindole-1,3,5,7(2H,6H)-tetraone, dimethyl 2,6-bis(2,2,3,3,4,4,4-heptafluorobutyl)-1,3,5,7-tetraoxo-1,2,3,5,6,7-hexahydropyrrolo(3,4-f)isoindole-4,8-dicarboxylate, and 4,8-difluoro-2,6-bis(2,2,3,3,4,4,4-heptafluorobutyl)pyrrolo(3,4-f)isoindole-1,3,5,7(2H,6H)-tetraone.    EXAMPLE - 1,4-Dichloro-2,3,5,6-tetracarboxylic acid dianhydride (3 g) in 1-methylpyrrolidone (30 ml) were reacted with 1H,1H-heptafluorobutylamine (2,2,3,3,4,4,4-heptafluorobutylamine) (5 g) in the presence of concentrated acetic acid (3 ml). After work-up 4,8-dichloro-2,6-bis-(2,2,3,3,4,4,4-heptafluorobutyl)-pyrrolo(3,4-f)isoindole-1,3,5,7-tetraone (4.4 g, 64.2% yield, 99.5% purity) was obtained.