6,7,12,13-四氢-(5,14:8,11)-二乙桥苯并环十二烷

p-quinodimethane

三环[9.2.2.1(4,8)]十六碳-4,6,8(16),11,13,14-六烯

1,2,3a,3,4,5-六氢芘

5,6,11,12-四氢-2,9-乙桥二苯并[a,e]环辛烯