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

N4-(3-(diethylamino)phenyl)-N4'-(pyren-1-yl)-N4,N4'-di-m-tolyl-[1,1'-biphenyl]-4,4'-diamine

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

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

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

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

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

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

N4,N4'-diphenyl-N4,N4'-bis(9-phenyl-9H-pyrido[3,4-b]indol-6-yl)-[1,1'-biphenyl]-4,4'-diamine

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

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

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

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

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

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

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

N4,N4-diphenyl-N4',N4'-bis(7-phenyl-7H-benzo[c]carbazol-9-yl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4-diphenyl-N4',N4'-bis(4-(tribenzo[b,d,f]oxepin-2-yl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

N4,N4'-diphenyl-N4,N4'-bis(6-phenyl-6H-indolo[2,3-b]quinolin-9-yl)-[1,1'-biphenyl]-4,4'-diamine

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