TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (Q) comprises coupling benz(a)anthracene (which is substituted by a reactive leaving group, preferably chlorine, bromine, iodine, triflate, tosylate, boronic acid or boronic acid ester in the position 8, 9 or 11 ) with a functionalized aromate or a mono- or di-substituted amine. Preferred Definitions:    X, Y1 = benzene, naphthalene, anthracene, carbazole, phenanthrene, benzanthracene, chrysene, pyrene, phenanthroline, phenanthroimidazole, 1,3,5-triazine, benzimidazole, thiophene, benzothiophene, pyrazine, pyrimidine, pyridazine or triarylamine, preferably triphenylamine; and    Ar1 = 1,2-phenyl, 1,3-phenyl, 1,4-phenyl, 1,4-naphthyl, 9,10-anthryl, 2,7-phenanthrenyl, 3,6-phenanthrenyl, 1,6-pyrenyl, 2,7-pyrenyl, 2,6-pyridinyl, 2,5-pyridinyl, 2,2'-biphenyl, 3,3'-biphenyl, 4,4'-biphenyl, 2,7-fluorenyl or 2,7-spirobifluorenyl.    Where: the group Ar1, X and/or Y1 are respectively bonded to 8 or 11 positions of the benz(a)anthracene and correspondingly there is no residue R bonded at this position, the residue R in 1-6 position of the benz(a)anthracene are respectively H, one of the 2-6 positions, preferably 4 or 5 are not H, and both the residue R in 7 and 12 position of the benz(a)anthracene are optionally H.    SPECIFIC COMPOUNDS - 17 Compounds (I) are disclosed e.g. 8-bromobenz(a)anthracene of formula (Qa), benz(a)anthracene-8-boronic acid, 9-(naphth-2-yl)-10-(benz(a)anthracen-8-yl)anthracene, 1-phenyl-2-(4-benz(a)anthracen-8-ylphenyl)benzimidazole and 8-(bis(4-methylphenyl)amino)benz(a)anthracene.    EXAMPLE - To a suspension of 8-bromobenz(a)anthracen-7,12-dione (75 g) in glacial acetic acid (900 ml), hypophosphorus acid (200 ml) and hydriodic acid (400 ml) were added. The reaction mixture was heated for 16 hours, cooled, the unusual solid material was removed and washed with water (500 ml), ethanol/water (1:1) and ethanol. The raw product was boiled in ethanol, subsequently crystallized in toluene/glacial acetic acid (approximately 15 ml/g) and dried to obtain 8-bromobenz(a)anthracene (35.8 g, purity 99%).