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

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

N4,N4'-diphenyl-N4,N4'-bis(3-(5-phenylpyrimidin-2-yl)naphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(3-(5-phenylpyridin-2-yl)naphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(1-(pyridin-4-yl)-1H-indol-5-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(3-(triphenylen-2-yl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

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

N4,N4-diphenyl-N4',N4'-bis(4-(1-phenyl-1H-1,2,3-triazol-4-yl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

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

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

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

N4,N4'-diphenyl-N4,N4'-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-bis(4'-([1,2,4]triazolo[1,5-a]pyridin-2-yl)-[1,1'-biphenyl]-4-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(7-phenyl-7H-benzo[c]carbazol-10-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-di(spiro[cyclohexane-1,9'-fluoren]-2'-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(4-(pyrrolo[1,2-a]pyrimidin-7-yl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(5,6,7,8-tetrahydronaphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4-diphenyl-N4',N4'-bis(4-(pyrrolo[1,2-a]pyrazin-7-yl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

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

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