tetraethyl (9-(4'-(3,6-di-tert-butyl-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9H-carbazole-3,6-diyl)bis(phosphonate)

((([1,1'-biphenyl]-4,4'-diylbis(p-tolylazanediyl))bis(4,1-phenylene))bis(methylene))diphosphonic acid

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

N-phenyl-N-(4'-(12-phenylbenzo[b]naphtho[1,8-ef][1,4]diazepin-7(12H)-yl)-[1,1'-biphenyl]-4-yl)dibenzo[b,d]furan-2-amine

N-phenyl-N-(4'-(3-(8-phenyl-8H-fluoreno[4,5-bcd]furan-8-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9,9'-spirobi[fluoren]-2-amine

N-phenyl-N-(4'-(10-phenyl-7H-benzo[c]carbazol-7-yl)-[1,1'-biphenyl]-4-yl)-[1,1':4',1''-terphenyl]-4-amine

N-phenyl-N-(4'-(2-phenyl-11H-benzo[a]carbazol-11-yl)-[1,1'-biphenyl]-4-yl)-[1,1':4',1''-terphenyl]-4-amine

N4-(9,9-dimethyl-9H-fluoren-1-yl)-N4,N4'-diphenyl-N4'-(triphenyleno[1,2-b]benzofuran-13-yl)-[1,1'-biphenyl]-4,4'-diamine

N-phenyl-4'-(3-(2-phenylthieno[2,3-c]pyridin-5-yl)-9H-carbazol-9-yl)-N-(4-(2-phenylthieno[2,3-c]pyridin-5-yl)phenyl)-[1,1'-biphenyl]-4-amine

N4-(2-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N4'-([1,1':2',1''-terphenyl]-4'-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N-(indolo[3,2,1-jk]carbazol-2-yl)-N-(4'-(1-phenyl-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)indolo[3,2,1-jk]carbazol-2-amine

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

N4-(9,9-dimethyl-10-phenyl-9,10-dihydroacridin-2-yl)-N4-(naphthalen-1-yl)-N4'-phenyl-N4'-(4-(9-phenyl-9H-carbazol-2-yl)phenyl)-[1,1'-biphenyl]-4,4'-diamine

N4-(7,7-dimethyl-7H-benzo[c]fluoren-9-yl)-N4-(4-methyl-4H-benzo[def]carbazol-2-yl)-N4',N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(9,9-dimethyl-10-phenyl-9,10-dihydroacridin-1-yl)-N4'-(4-(diphenylamino)phenyl)-N4'-phenyl-N4-(p-tolyl)-[1,1'-biphenyl]-4,4'-diamine

N4-(7,12-diphenyl-7,12-dihydrobenzo[de]indolo[3,2-b]quinolin-9-yl)-N4,N4',N4'-triphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(8-([1,1'-biphenyl]-4-yl)-8H-naphtho[1,2,3-kl]acridin-1-yl)-N4,N4',N4'-triphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(9-([1,1':4',1''-terphenyl]-4-yl)-9H-carbazol-3-yl)-N4,N4',N4'-triphenyl-[1,1'-biphenyl]-4,4'-diamine

N4-(11,11-dimethyl-11H-indeno[1,2-b]dibenzo[b,e][1,4]dioxin-8-yl)-N4-(naphtho[2,3-b]benzofuran-3-yl)-N4',N4'-di-p-tolyl-[1,1'-biphenyl]-4,4'-diamine