TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The organic layer comprises one or more compound comprising arylamine compounds or styrylarylamine compounds. The organic layer comprises one or more metal comprising organic metals of group 1, group 2, 4th period and 5th period transition metals, lanthanide metals or d-transition elements from the periodic table of elements. The organic layer comprises a charge generating layer and the electroluminescent layer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): Preparation of (I) comprises reacting an anthracene halide compound of formula (X1-A-(AN(R1)(R2))-(G-X2)n) with a pyrrole compound of formula (g1) to give (I).X1, X2 = halo. Preferred Definitions:    A, G = naphthalene moiety, anthracene moiety, biphenyl moiety, phenanthrene moiety, triphenylene moiety, chrylene moiety, pyrene moiety, spiro(fluorene-9,2'-indane) moiety, pyridine moiety, quinolene moiety, thiophene moiety, furan moiety, pyrazine moiety, (1,3,5)triazine moiety, dibenzofuran moiety, dibenzothiophene moiety, 2-phenyl-1H-benzoimidazole moiety, 2-phenyl-1H-indole moiety, 9-phenyl anthracene moiety, 9-naphthalen-1-yl-anthracene moiety, 9,10-diphenyl-anthracene moiety, 9-naphthalen-1-yl-10-phenyl-anthracene moiety, a phenyl group of formula (a1), a 9H-fluorene group of formula (a2), a phenyl-9H-fluorene group of formula (a3) or (a4), a (9H-fluoren-2-yl)-anthracene group of formula (a5) or (a6), a 9H,9'H-(2,2')bifluorenyl group of formula (a7), a 6,12-dihydro-indeno(1,2-b)fluorene group of formula (a8) or (a9), a pyrrole group of formula (a10), or a 9H-carbazole group of formula (a11);    R51 = halo, (1-60C)alkyl, (6-60C)aryl, (4-60C)heteroaryl, 5- or 6-membered heterocycloalkyl (containing heteroatom of N, O and/or S), (3-60C)cycloalkyl, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl, tri(6-60C)arylsilyl, adamantyl, (7-60C)bicycloalkyl, (2-60C)alkenyl, (2-60C)alkynyl, (1-60C)alkoxy, CN, (1-60C)alkylamino, (6-60C)arylamino, (6-60C)ar(1-60C)alkyl, (6-60C)aryloxy, (6-60C)arylthio, (1-60C)alkoxycarbonyl, carboxyl, NO2 or OH; and either    R52-R56 = halo, (1-60C)alkyl, (6-60C)aryl, (4-60C)heteroaryl, 5- or 6-membered heterocycloalkyl (containing heteroatom of N, O and/or S), (3-60C)cycloalkyl, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl, tri(6-60C)arylsilyl, adamantyl, (7-60C)bicycloalkyl, (2-60C)alkenyl, (2-60C)alkynyl, (1-60C)alkoxy, CN, (1-60C)alkylamino, (6-60C)arylamino, (6-60C)ar(1-60C)alkyl, (6-60C)aryloxy, (6-60C)arylthio, (1-60C)alkoxycarbonyl, carboxyl, NO2 or OH; or    R52-R56, linked adjacent substituent via (3-60C)alkylene or (3-60C)alkenylene with or without a fused ring = alicyclic ring, or a monocyclic or polycyclic aromatic ring.    SPECIFIC COMPOUNDS - 453 Compounds (I) are disclosed e.g. 1-(9,10-di-naphthalen-2-yl-anthracen-2-yl)-2,5-diphenyl-1H-pyrrole of formula (Ia), 1-(9,10-diphenyl-anthracen-2-yl)-2,5-diphenyl-1H-pyrrole, 1-(9,10-di-naphthalen-1-yl-anthracen-2-yl)-2,5-diphenyl-1H-pyrrole, 1-(9,10-dicyclohexyl-anthracen-2-yl)-2,5-diphenyl-1H-pyrrole and 1-(9,10-di-phenanthren-9-yl-anthracen-2-yl)-2,5-diphenyl-1H-pyrrole.    EXAMPLE - 2-Bromonaphthalene (819 g) was dissolved in tetrahydrofuran (5 l) at room temperature with stirring for 10 minutes to provide complete dissolution in a reaction vessel. After chilling the solution to -78 degrees C butyl lithium (2.68 l) was slowly added dropwise. After 1 hour, 2-chloroanthraquinone (400 g) was added, and the resultant mixture was stirred for 26 hours, while slowly raising the temperature to room temperature. Saturated ammonium chloride solution was added, and the resultant mixture was stirred for one hour, and worked up to give 2-chloro-9,10-di-naphthalen-2-yl-9,10-dihydro-anthracene-9,10-diol. 2-Chloro-9,10-di-naphthalen-2-yl-9,10-dihydro-anthracene-9,10-diol (551 g), potassium iodide (733 g), sodium phosphate monohydrate (937 g) and acetic acid (3.35 l) were stirred under reflux in a reaction vessel. After 21 hours, the reaction mixture was cooled to room temperature, and worked up to give 2-chloro-9,10-di-naphthalen-2-yl-anthracene. Reaction vessel was charged with 2-chloro-9,10-di-naphthalen-2-yl-anthracene (10 g), 2,5-diphenylpyrrole (5.66 g), palladium acetate (0.096 g), tri-tert-butylphosphine (0.17 g) and cesium carbonate (10.5 g) under nitrogen atmosphere. Toluene solvent (200 ml) was added, and the mixture was stirred under reflux for 18 hours and worked up to give 1-(9,10-di-naphthalen-2-yl-anthracen-2-yl)-2,5-diphenyl-1H-pyrrole (61%).