NOVELTY - Pentacyclo(10.7.0.0(2,10).0(3,8).0(14,19))nonadeca-1(12),2(10),3,5,7,14(19),15,17-octaene derivative (I), is new.    USE - (I) or polymer, oligomer or dendrimer is useful in an electronic device comprising organic integrated circuits, organic field-effect transistors, organic thin film transistors, organic light-emitting transistors, organic solar cells, organic optical detectors, organic photoreceptors, organic field-quench devices, light-emitting electrochemical cells, organic laser diodes or organic electroluminescent device, preferably in organic electroluminescent device, where the organic electroluminescent device comprises (I) or the polymer, the oligomer or the dendrimer as a hole transport material in a hole transport layer or a hole injection layer, a matrix material in an emitting layer and/or an electron transport material in an electron transport layer (all claimed).    ADVANTAGE - (I): provides high service life, high efficiency, low operating voltage and good color coordinates to the electronic devices; and exhibits high oxidation stability in solution, high purity and improved temperature-stability.    DETAILED DESCRIPTION - Pentacyclo(10.7.0.0(2,10).0(3,8).0(14,19))nonadeca-1(12),2(10),3,5,7,14(19),15,17-octaene derivative of formula (I), is new.    X1, X2, X3 = C(R2)2, C=O, C=NR2, Si(R2)2, NR1, PR1, P(=O)R1, O, S, S=O or S(=O)2;    Z = CR2 or N, where not more than two adjacent groups Z is simultaneously equal to N; either    R1 = C(=O)R3, CR3=C(R3)2, C(=O)OR3, C(=O)NR32, P(=O)(R3)2, OR3, S(=O)R3, S(=O)2R3, (hetero)aromatic ring system with 5-60 aromatic ring atoms, which is respectively substituted by at least one R3, or combination of these system; or    at least 2R1 = aliphatic or aromatic ring; either    R2 = H, D, F, Cl, Br, I, B(OR3)2, CHO, C(=O)R3, CR3=C(R3)2, CN, C(=O)OR3, C(=O)NR32, Si(R3)3, N(R3)2, NO2, P(=O)(R3)2, OS(=O)2R3, OH, S(=O)R3, S(=O)2R3, straight chain 1-40C alkyl, 1-40C alkoxy, 1-40C thioalkyl, branched or cyclic 3-40C alkyl, 3-40C alkoxy, 3-40C thioalkyl or 2-40C alkenyl, 2-40C alkynyl (where each group is respectively substituted with at least one R3 and at least one non- adjacent CH2- is replaced by -R3C=CR3-, -CC-, Si(R3)2, Ge(R3)2, Sn(R3)2, C=O, C=S, C=Se, C=NR3, C(=O)O-, -C(=O)NR3-, NR3, P(=O)(R3), -O-, -S-, S=O or S(=O)2 and at least one H is replaced by D, F, Cl, Br, I, CN or NO2), (hetero)aromatic ring system with 5-60 aromatic ring atoms (where each group is substituted by at least one R3), (hetero)aryloxy with 5-60 aromatic ring atoms (which are substituted by at least one R3), or combination of these systems; or    at least 2R2 = aliphatic or aromatic ring; either    R3 = H, D, F, Cl, Br, I, B(OR4)2, CHO, C(=O)R4, CR4=C(R4)2, CN, C(=O)OR4, C(=O)NR42, Si(R4)3, N(R4)2, NO2, P(=O)(R4)2, OS(=O)2R4, OH, S(=O)R4, S(=O)2R4, straight chain 1-40C alkyl, 1-40C alkoxy or 1-40C thioalkyl, branched or cyclic 3-40C alkyl, 3-40C alkoxy, 3-40C thioalkyl, 2-40C alkenyl, 3-40C alkynyl (where each group is substituted by at least one R4, at least one non-adjacent CH2 is replaced by -R4C=CR4-, -CC-, Si(R4)2, Ge(R4)2, Sn(R4)2, C=O, C=S, C=Se, C=NR4, -C(=O)O-, -C(=O)NR4-, NR4, P(=O)(R4), -O-, -S-, S=O or S(=O)2 and at least one H is replaced by D, F, Cl, Br, I, CN or NO2), (hetero)aromatic ring system with 5-60 aromatic ring atoms (where each group is substituted by at least one R4), (hetero)aryloxy with 5-60 aromatic ring atoms (which are substituted by at least one R4), or combination of theses systems; or    at least 2R3 = aliphatic or aromatic ring; either    R4 = H, D, F, aliphatic and (hetero)aromatic organic 1-20C residue (where at least one H is replaced by D or F); or    at least 2R4 = aliphatic or aromatic ring; and    n = 0-2.    INDEPENDENT CLAIMS are also included for:    (1) the preparation of (I);    (2) an oligomer, a polymer or a dendrimer comprising (I), where the bonds to the polymer, oligomer or dendrimer are localized at arbitrary substituted positions in (I) with R1 or R2; and    (3) a formulation comprising (I) or at least one oligomer, polymer or dendrimer and a solvent.