NOVELTY - Spirobi(9H-anthracene) compounds are new.    USE - (I) are useful in an electronic device such as organic integrated circuit, organic FET, organic thin film transistor, organic light-emitting transistor, organic solar cells, organic visual detector, organic photo receptor, organic field-quench device, organic light-emitting electrochemical cell, organic laser diode and organic electroluminescent device (all claimed).    ADVANTAGE - (I) provide improved performance, efficiency and operating voltage, and prolonged service life to the electronic device.    DETAILED DESCRIPTION - Spirobi(9H-anthracene) compounds of formula (I) are new.    A = arylamino or carbazole group (both optionally substituted with one or more groups of R1);    E1 = single bond;    X = O (preferred) or S;    Z = CR2 or N, when the group A is attached to Z, then Z is C;    R1, R2 = linear alkyl or 1-20C-alkoxy, branched or cyclic alkyl, 3-20C-alkoxy, alkenyl, 2-20C-alkynyl (all optionally substituted with R3), H, D, F, Cl, Br, I, C(=O)R3, CN, Si(R3)3, N(R3)2, P(=O)(R3)2, S(=O)R3, or S(=O)2R3, where one or more CH2 groups in R1 are replaced with one of -R3C=CR3, -CC-, Si(R3)2, C=O, C=NR3, -C(=O)O-, -C(=O)NR3, NR3, P(=O)(R3),-O-,-S-, SO or SO2, and one or more H atoms are replaced by D, F, Cl, Br, I, CN, or aryl or heteroaryl ring having 5-30 aromatic ring, which is substituted by one or more groups of R3, aryloxy or heteroaryloxy group having 5-30 aromatic ring, which is substituted by one or more groups of R3, and two or more groups of R1 are linked to each other and may form a ring; either    R3 = H, D, F, Cl, Br, I, C(=O)R4, CN, Si(R4)3, N(R4)2, P(=O)(R4)2, S(=O)R4, S(=O)2R4, straight-chain alkyl or 1-20C-alkoxy, branched or cyclic alkyl, 3-20C-alkoxy, alkenyl, or 2-20C-alkynyl (all optionally substituted with R4), where one or more CH2 groups in R1 are replaced with one of -R4C=CR4, -CC-, Si(R4)2, C=O, C=NR4, -C(=O)O-, -C(=O)NR4, NR4, P(=O)(R4),-O-,-S-, SO or SO2, and one or more H atoms are replaced by D, F, Cl, Br, I, CN, or aryl or heteroaryl ring having 5-30 aromatic ring, which is substituted by one or more groups of R4, or aryloxy or heteroaryloxy group having 5-30 aromatic ring, which is substituted by one or more groups of R4; or    R3R3 = a ring; either    R4 = H, D, F, aliphatic, aryl or 1-20C-heteroaryl organic group, in which one or more H atoms may be replaced by D, or F; or    R4R4 = ring; and    i, n = 0 or 1, where the sum of i and n is 1.    INDEPENDENT CLAIMS are included for:    (1) preparing (I);    (2) electronic device comprising (I);    (3) oligomer, polymer or dendrimer comprising (I), where the bonds of the polymer, oligomer, or dendrimer are located in (I) with R1 or R2 substituted positions; and    (4) a formulation comprising (I), at least one polymer, oligomer or dendrimer and at least one solvent.