TECHNOLOGY FOCUS - ELECTRONICS - Preferred Device: The organic layer is formed by solution process. The organic layer is laminated between two electrodes. The organic layer consists of a light-emitting layer which contains compound (I).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No general preparation given. Preferred Definitions:    R1-R10,R'1-R'10=H.    SPECIFIC COMPOUNDS - 64 Compounds (I) are specifically claimed e.g. 9-(3-(anthracen-9-yl)-5-(20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaen-9-yl)phenyl)-20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaene of formula (IA), 9-(3-(9,9-dimethyl-9H-fluoren-2-yl)-5-(20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaen-9-yl)phenyl)-20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaene, 9-(3-(phenanthren-9-yl)-5-(20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaen-9-yl)phenyl)-20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaene, 9-(3-(3,5-diphenylphenyl)-5-(20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaen-9-yl)phenyl)-20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaene, and 9-(3-(3,4-diphenylphenyl)-5-(20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaen-9-yl)phenyl)-20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaene.    EXAMPLE - 9-Anthracene boronic acid, tetrakis(triphenylphosphine)palladium, and potassium carbonate were dissolved in anhydrous tetrahydrofuran and refluxed for 24 hours. The reaction product was extracted using dichloromethane and recrystallized using toluene. The organic solvent was removed by concentration and the residue was filtered to obtain 9-(3-(anthracen-9-yl)-5-(20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaen-9-yl)phenyl)-20-thia-9-azapentacyclo(11.7.0.02,10.03,8.014,19)icosa-1(13),2(10),3(8),4,6,11,14(19),15,17-nonaene with a yield of 71%. The obtained compound had a luminous efficiency of 62.3 cd/A, and excellent chromatic purity (x value of 0.3 and y value of 0.6).