N4-(4'-(diphenylamino)-[1,1'-biphenyl]-4-yl)-N4,N4'-diphenyl-N4'-(4'-(phenylamino)-[1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine

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

N4-([1,1':4',1''-terphenyl]-4-yl)-N4'-(4-(dibenzo[b,d]selenophen-2-yl)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-([1,1'-biphenyl]-3-yl)-N4'-(9,9-dimethyl-9H-fluoren-3-yl)-N4'-phenyl-N4-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-[1,1'-biphenyl]-4,4'-diamine

N4-(4'-(diphenylamino)-[1,1'-biphenyl]-4-yl)-N4-(4-(methylthio)phenyl)-N4',N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(9H-carbazol-9-yl)phenyl)-N4',N4'-di([1,1':3',1''-terphenyl]-5'-yl)-N4-phenyl-[1,1'-biphenyl]-4,4'-diamine

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

N4-(4-(5-(bicyclo[2.2.1]hept-5-en-2-yl)pentyl)phenyl)-N4,N4'-di(naphthalen-1-yl)-N4'-phenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(dibenzo[b,d]thiophen-4-yl)phenyl)-N4',N4'-diphenyl-N4-(triphenylen-2-yl)-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(7bH-indeno[1,2,3-jk]fluoren-7b-yl)phenyl)-N4'-(naphthalen-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N4-phenyl-N4',N4'-di-p-tolyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(7bH-indeno[1,2,3-jk]fluoren-7b-yl)phenyl)-N4,N4'-diphenyl-N4'-(9-phenyl-9H-carbazol-3-yl)-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(9H-carbazol-9-yl)phenyl)-N4'-(9,9-dimethyl-9H-fluoren-3-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(9,10-diphenylanthracen-2-yl)phenyl)-N4,N4',N4'-triphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(4H-benzo[def]carbazol-4-yl)phenyl)-N4-(9,9-diphenyl-9H-fluoren-2-yl)-N4',N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(dibenzo[b,d]furan-4-yl)phenyl)-N4-(dibenzo[b,d]thiophen-2-yl)-N4',N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

(([1,1'-biphenyl]-4,4'-diylbis(naphthalen-1-ylazanediyl))bis(4,1-phenylene))bis(methylene) bis(2-methylhexan-2-yl) dicarbonate

9-([1,1'-biphenyl]-2-yl)-N-phenyl-N-(4'-(12-phenylbenzo[b]naphtho[1,8-ef][1,4]diazepin-7(12H)-yl)-[1,1'-biphenyl]-4-yl)-9H-carbazol-1-amine

9-(4'-(di([1,1'-biphenyl]-4-yl)amino)-[1,1'-biphenyl]-4-yl)-9H-carbazole-3-carbonitrile

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