4-bromo-1,1,7,7-tetramethyl-3,3,5,5-tetraphenyl-s-hydrindacene

1,1,3,3-tetraphenyl-1-butene

1,1,3,3-tetraphenylcyclobutane

1,1,4-triphenyl-1,2,3,4-tetrahydronaphthalene

1,1,4-triphenyl-1,2-dihydronaphthalene