N4,N4'-di(naphthalen-1-yl)-N4,N4'-bis(4-phenylnaphthalen-2-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-di(naphthalen-1-yl)-N4-(2-phenyl-2H-benzo[d][1,2,3]triazol-5-yl)-N4'-(9-phenyl-9H-carbazol-3-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(4-((6-((3-ethyloxetan-3-yl)methoxy)hexyl)oxy)phenyl)-N4,N4'-bis(4-methoxyphenyl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(4-((6-((3-methyloxetan-3-yl)oxy)hexyl)oxy)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(adamantan-2-yl)phenyl)-N4,N4'-di(naphthalen-1-yl)-N4'-(9-phenyl-9H-carbazol-2-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(4-(2-methyl-4-(trimethylsilyl)phenyl)naphthalen-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-di(1,10-phenanthrolin-5-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N,N-bis(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-[1,1':2',1'':4'',1'''-quaterphenyl]-5'-amine

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

N,N-bis(4-(benzofuran-5-yl)phenyl)-4'-(3-(2-(naphthalen-1-yl)benzofuran-5-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine

N,N-di([1,1'-biphenyl]-4-yl)-4'-(9-(dibenzo[b,d]thiophen-4-yl)-13c-methyl-9,13c-dihydro-5H-indolo[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5-yl)-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(9-([1,1'-biphenyl]-4-yl)-13c-methyl-9,13c-dihydro-5H-indolo[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5-yl)-[1,1'-biphenyl]-4-yl)phenanthren-9-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(9,9,13c-trimethyl-9,13c-dihydro-5H-benzo[4,5]pentaleno[1,2,3-kl]acridin-5-yl)-[1,1'-biphenyl]-4-yl)triphenylen-2-amine

N,N'-(indolo[3,2-b]carbazole-5,11-diylbis([1,1'-biphenyl]-4',4-diyl))bis(N-phenylnaphthalen-1-amine)

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

N-([1,1'-biphenyl]-4-yl)-N-(4'-(9-(4,6-diphenylpyrimidin-2-yl)-13c-methyl-9,13c-dihydro-5H-indolo[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5-yl)-[1,1'-biphenyl]-4-yl)naphthalen-1-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(3-(8-phenyl-8H-fluoreno[4,5-bcd]furan-8-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)dibenzo[b,d]furan-3-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(13c-methyl-9-phenyl-9,13c-dihydro-5H-indolo[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5-yl)-[1,1'-biphenyl]-4-yl)phenanthren-9-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(13c-methylbenzo[4',5']thieno[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5(13cH)-yl)-[1,1'-biphenyl]-4-yl)naphthalen-1-amine

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