4,4-二甲基-5-(对甲苯)-1,1:3,1-ter苯基

7,9-dimethyl-1,3,9-tris(p-methylphenyl)fluorene

2,10,12-trimethyl-6,12,13a-tris(p-methylphenyl)benzo[6,7]cycloheptadieno[1,2,3-jk]fluorene