4,4'-bis(8-(tert-butyl)-11-phenylindolo[3,2-b]carbazol-5(1H,5aH,11H)-yl)-1,1'-biphenyl

5-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-7-phenyl-1,5,5a,7-tetrahydroindolo[2,3-b]carbazole

5-(4'-(7H-benzo[c]carbazol-7-yl)-[1,1'-biphenyl]-4-yl)-5H-benzo[4,5]thieno[3,2-c]carbazole

5-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-5H-dibenzo[b,f]azepine

4,4'-bis(8,8-diphenylindeno[2,1-c]carbazol-5(8H)-yl)-1,1'-biphenyl

N,N-bis(4-(adamantan-1-yl)phenyl)-4'-(3,6-di(benzofuran-2-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine

N4,N4'-bis(4-(diphenylamino)phenyl)-N4-phenyl-N4'-(spiro[cyclohexane-1,9'-fluoren]-2'-yl)-[1,1'-biphenyl]-4,4'-diamine

N-([1,1'-biphenyl]-4-yl)-4'-(3-(benzofuran-2-yl)-6-(naphthalen-1-yl)-9H-carbazol-9-yl)-N-(4-(benzofuran-2-yl)phenyl)-[1,1'-biphenyl]-4-amine

4'-(3-(5H-benzo[4,5]thieno[3,2-c]carbazol-5-yl)-9H-carbazol-9-yl)-N-([1,1'-biphenyl]-4-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

N,N-bis(4-(benzo[d]oxazol-6-yl)phenyl)-4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine

4-(naphthalen-1-yl(4'-(naphthalen-1-yl(phenyl)amino)-[1,1'-biphenyl]-4-yl)amino)phenyl methacrylate

N,N-bis(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)benzo[d]thiazol-6-amine

N4,N4'-(naphthalene-2,7-diyl)bis(N4,N4',N4'-triphenyl-[1,1'-biphenyl]-4,4'-diamine)

N,N-bis(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)perylen-3-amine

4-((4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)([1,1'-biphenyl]-4-yl)amino)benzonitrile

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(2-(dibenzo[b,d]furan-2-yl)phenyl)naphthalen-1-amine

4'-((10-(naphthalen-1-yl)phenazin-5(10H)-yl)boryl)-N,N-diphenyl-[1,1'-biphenyl]-4-amine

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-([1,1':4',1''-terphenyl]-4-yl)-[1,1':4',1''-terphenyl]-2-amine