N4-(10,10-diphenyl-10H-indeno[1,2-b]benzofuran-2-yl)-N4'-(naphthalen-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(tert-butyl)phenyl)-N4'-(2,3-dihydro-1H-inden-4-yl)-N4'-(naphthalen-2-yl)-N4-phenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(2,3-di(naphthalen-2-yl)phenyl)-N4,N4',N4'-tri(naphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N1-([1,1'-biphenyl]-4-yl)-N1-(4'-(7,7-dimethylbenzo[5',6'][1,4]dithiino[2',3':5,6]indeno[1,2-a]carbazol-16(7H)-yl)-[1,1'-biphenyl]-4-yl)-N4,N4-diphenylbenzene-1,4-diamine

N1-([1,1'-biphenyl]-4-yl)-N1-(4'-(9,9-dimethylbenzo[5,6][1,4]dioxino[2,3-b]indeno[1,2-h]carbazol-7(9H)-yl)-[1,1'-biphenyl]-4-yl)-N4,N4-diphenylbenzene-1,4-diamine

N1-([1,1'-biphenyl]-4-yl)-N1-(4'-(7,7-dimethylbenzo[5',6'][1,4]dioxino[2',3':5,6]indeno[1,2-a]carbazol-16(7H)-yl)-[1,1'-biphenyl]-4-yl)-N4,N4-diphenylbenzene-1,4-diamine

N4-(10',10'-dimethyl-10'H-spiro[fluorene-9,5'-indeno[2,1-a]inden]-3-yl)-N4,N4',N4'-triphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(6,6-diphenyl-6H-benzo[b]indeno[1,2-d]thiophen-8-yl)-N4'-(naphthalen-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N1-(4'-(9-(diphenylamino)-9-phenylacridin-10(9H)-yl)-[1,1'-biphenyl]-4-yl)-N1,N4,N4-triphenylbenzene-1,4-diamine

N1-(4'-(7H-dibenzo[c,g]carbazol-7-yl)-[1,1'-biphenyl]-4-yl)-N1-([1,1'-biphenyl]-4-yl)-N4,N4-diphenylbenzene-1,4-diamine

N4-(6,9-diphenyl-9H-carbazol-3-yl)-N4,N4',N4'-triphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(10,10-diphenyl-10H-indeno[1,2-b]benzofuran-2-yl)-N4'-phenyl-N4,N4'-di-m-tolyl-[1,1'-biphenyl]-4,4'-diamine

N4-(10,10-diphenyl-10H-indeno[1,2-b]benzofuran-2-yl)-N4,N4'-diphenyl-N4'-(m-tolyl)-[1,1'-biphenyl]-4,4'-diamine

N1-(4'-(2-(di-p-tolylamino)-5H-dibenzo[b,f]azepin-5-yl)-[1,1'-biphenyl]-4-yl)-N1-(4-(diethylamino)phenyl)-N4,N4-diethylbenzene-1,4-diamine

(E)-N4-(9,9-dimethyl-9H-fluoren-2-yl)-N4'-(9,9-dimethyl-9H-fluoren-3-yl)-N4'-phenyl-N4-(4-(2-(triethoxysilyl)vinyl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

N4-(9,9-dimethyl-9H-fluoren-2-yl)-N4'-(4-methoxyphenyl)-N4-(4-((4-methoxyphenyl)(phenyl)amino)phenyl)-N4'-phenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(9,9-dimethyl-9H-fluoren-2-yl)-N4'-phenyl-N4-(4-(phenyl(p-tolyl)amino)phenyl)-N4'-(p-tolyl)-[1,1'-biphenyl]-4,4'-diamine

N4-(9,9-dimethyl-7-vinyl-9H-fluoren-2-yl)-N4'-(9,9-dimethyl-9H-fluoren-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-([1,1':3',1''-terphenyl]-4-yl)-N4'-(9,9-dimethyl-9H-fluoren-1-yl)-N4,N4'-di(naphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N4-(9,9-dimethyl-9H-fluoren-1-yl)-N4,N4'-di(naphthalen-1-yl)-N4'-phenyl-[1,1'-biphenyl]-4,4'-diamine