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

N4-(dibenzo[b,d]thiophen-4-yl)-N4'-(4-(fluoranthen-3-yl)phenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

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

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

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

N4,N4'-diphenyl-N4,N4'-bis(3-(7-(trimethylsilyl)quinolin-4-yl)naphthalen-1-yl)-[1,1'-biphenyl]-4,4'-diamine

N4-(4-(dibenzo[b,d]thiophen-2-yl)phenyl)-N4'-(dibenzo[b,d]thiophen-4-yl)-N4,N4'-diphenyl-[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(3-(5-phenylpyridin-2-yl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

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

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

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

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

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

N4,N4'-diphenyl-N4,N4'-di(spiro[benzo[c]fluorene-7,1'-cyclopentan]-5-yl)-[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'-di(spiro[cyclopentane-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-2-yl)-[1,1'-biphenyl]-4,4'-diamine

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