N4,N4'-bis(3-methyl-4-((E)-styryl)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(4-(1,2-dihydroacenaphthylen-5-yl)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4-bis(4-(1,5-diphenyl-1H-imidazol-2-yl)phenyl)-N4',N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4-bis(4-(1,5-diphenyl-1H-pyrazol-3-yl)phenyl)-N4',N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

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

N4,N4'-bis(4-(tert-butyl)phenyl)-N4,N4'-bis(4-methoxyphenyl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(4-(pentan-2-yloxy)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-(acenaphthylen-5-yl)naphthalen-1-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-(4-methyl-[1,1'-biphenyl]-3-yl)naphthalen-1-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-(methoxymethyl)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-(fluoromethyl)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-(2-(naphthalen-2-yl)imidazo[1,2-a]pyridin-3-yl)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(3-((4-vinylbenzyl)oxy)phenyl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-(2-methylquinolin-8-yl)naphthalen-1-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-(sec-butyl)phenyl)-N4,N4'-di(naphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(3-(o-tolyl)naphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(3-isopropylphenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(2-(methylthio)phenyl)-N4,N4'-bis(7-phenylnaphthalen-2-yl)-[1,1'-biphenyl]-4,4'-diamine

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

N4,N4-di([1,1'-biphenyl]-4-yl)-N4'-phenyl-N4'-(spiro[benzo[b]fluoreno[3,4-d]thiophene-7,9'-fluoren]-2-yl)-[1,1'-biphenyl]-4,4'-diamine