N,N-di([1,1'-biphenyl]-4-yl)-4'-(3-(9-phenyl-9H-fluoren-9-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine

5-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9-(4,6-diphenyl-1,3,5-triazin-2-yl)-13c-methyl-9,13c-dihydro-5H-indolo[3',2':4,5]cyclopenta[1,2,3-kl]acridine

4,4'-di(9H-5-thia-9-aza-13b-boranaphtho[3,2,1-de]anthracen-9-yl)-1,1'-biphenyl

4,4'-bis(6-methyl-1-(2-phenylbenzofuran-5-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(thieno[2,3-e][1,2,3,4]tetrazin-6-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(oxazolo[5,4-b]pyridin-2-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3,7-di-tert-butyl-10H-phenothiazin-10-yl)-1,1'-biphenyl

4,4'-bis(4-(benzo[b]thiophen-3-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(naphthalen-2-yl)-10H-phenoxazin-10-yl)-1,1'-biphenyl

4,4'-bis(3-(trimethylsilyl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(benzo[d]thiazol-2-yl)-7-phenyl-10H-phenoxazin-10-yl)-1,1'-biphenyl

4,4'-bis(3-(benzo[b]thiophen-7-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(benzofuran-2-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(furo[2,3-e][1,2,3,4]tetrazin-6-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-([1,1'-biphenyl]-4-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(6-phenylbenzo[d]oxazol-2-yl)-10H-phenoxazin-10-yl)-1,1'-biphenyl

4,4'-bis(3-(benzo[b]thiophen-2-yl)-6-phenyl-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(6-cyclopentylbenzofuran-2-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(4-(benzofuran-2-yl)-2,5-dimethylphenyl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(2-phenylfuro[3,2-b]pyridin-3-yl)-9H-carbazol-9-yl)-1,1'-biphenyl