4,4'-bis(3-(5-methylbenzo[d]oxazol-2-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(2-methylnaphtho[1,2-d]oxazol-4-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

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

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

4,4'-bis(12,12-dimethyl-4-thia-8-aza-12-sila-3a2-boradibenzo[cd,mn]pyren-8(12H)-yl)-1,1'-biphenyl

4,4'-bis(2-(benzo[d]oxazol-2-yl)-8-phenyl-10H-phenoxazin-10-yl)-1,1'-biphenyl

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

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

4,4'-bis(10-(benzo[b]thiophen-2-yl)-7H-benzo[c]carbazol-7-yl)-1,1'-biphenyl

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

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

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

4,4'-([1,1'-biphenyl]-4,4'-diylbis((7-phenylnaphthalen-2-yl)azanediyl))dibenzonitrile

4',4'''-([1,1'-biphenyl]-4,4'-diylbis(phenylazanediyl))bis(([1,1'-biphenyl]-3,4-dicarbonitrile))

4,4'-([1,1'-biphenyl]-4,4'-diylbis((4-(pyrrolo[1,2-a]pyrazin-7-yl)phenyl)azanediyl))dibenzonitrile

4,4'-([1,1'-biphenyl]-4,4'-diylbis((4-(indolizin-2-yl)phenyl)azanediyl))dibenzonitrile

4,4'-([1,1'-biphenyl]-4,4'-diylbis((4-phenylnaphthalen-2-yl)azanediyl))dibenzonitrile

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

4,4'-((4'-(bis(4-(hexyloxy)phenyl)amino)-[1,1'-biphenyl]-4-yl)azanediyl)dibenzaldehyde

4,4'-([1,1'-biphenyl]-4,4'-diylbis((3-phenylnaphthalen-1-yl)azanediyl))dibenzonitrile