N,10-diphenyl-N-(4'-(12-phenylbenzo[b]naphtho[1,8-ef][1,4]diazepin-7(12H)-yl)-[1,1'-biphenyl]-4-yl)-10H-spiro[acridine-9,9'-fluoren]-1'-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(13c-methylspiro[benzo[4,5]pentaleno[1,2,3-kl]acridine-9,9'-thioxanthene]-5(13cH)-yl)-[1,1'-biphenyl]-4-yl)phenanthren-9-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(13c-methylbenzo[4',5']thieno[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5(13cH)-yl)-[1,1'-biphenyl]-4-yl)triphenylen-2-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(9,9,13c-trimethyl-9,13c-dihydro-5H-benzo[4,5]pentaleno[1,2,3-kl]acridin-5-yl)-[1,1'-biphenyl]-4-yl)naphthalen-1-amine

N-([1,1'-biphenyl]-4-yl)-N-(4-(tert-butyl)phenyl)-4'-(6-phenyl-6,12-diazaindeno[2,1,7,6-ghij]pleiaden-12(6H)-yl)-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(8,9-dihydro-4H-benzo[def]carbazol-4-yl)-[1,1'-biphenyl]-4-yl)dibenzo[b,d]furan-3-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(3-(9,9-dimethyl-9H-fluoren-3-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-[1,1':4',1''-terphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(13c-methyl-9,9-diphenyl-9,13c-dihydro-5H-benzo[4,5]pentaleno[1,2,3-kl]acridin-5-yl)-[1,1'-biphenyl]-4-yl)naphthalen-1-amine

N-([1,1'-biphenyl]-4-yl)-4'-(9-(dibenzo[b,d]furan-2-yl)-13c-methyl-9,13c-dihydro-5H-indolo[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-N-(4'-(13,13-dimethyl-7,7-diphenyl-7H-indeno[1,2-c]acridin-12(13H)-yl)-[1,1'-biphenyl]-4-yl)-[1,1':4',1''-terphenyl]-2'-amine

N-([1,1'-biphenyl]-4-yl)-4-phenyl-N-(4'-(2-(8-phenyl-8H-fluoreno[4,5-bcd]thiophen-8-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)naphthalen-1-amine

N-([1,1'-biphenyl]-4-yl)-4'-(15H-benzo[g]benzo[5,6][1,4]dithiino[2,3-a]carbazol-15-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-4'-(8-(benzo[b]thiophen-2-yl)-11H-benzo[a]carbazol-11-yl)-N-(4-(benzo[b]thiophen-2-yl)phenyl)-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-4'-(9H-carbazol-9-yl)-N-(4-(8-phenyl-8H-fluoreno[4,5-bcd]thiophen-8-yl)phenyl)-[1,1'-biphenyl]-4-amine

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

N-([1,1'-biphenyl]-4-yl)-4'-(13c'-methyl-10-phenyl-10H-spiro[acridine-9,9'-benzo[4,5]pentaleno[1,2,3-kl]acridine]-5'(13c'H)-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-4'-(13c-methyl-9-phenyl-9,13c-dihydro-5H-indolo[3',2':4,5]cyclopenta[1,2,3-kl]acridin-5-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

N-(9,9'-spirobi[fluoren]-7-yl)-N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)dibenzo[b,d]furan-1-amine

N-(9,9-dimethyl-9H-fluoren-2-yl)-N-(4'-(7,7-diphenylbenzo[c]acridin-12(7H)-yl)-[1,1'-biphenyl]-4-yl)-9,9-dimethyl-9H-thioxanthen-2-amine

2-(3-(3-methoxy-3-methylbut-1-yn-1-yl)phenyl)imidazo[1,2-a]pyridine