9-phenyl-9-phosphatricyclo[4.2.1.02,5]nona-3,7-diene

2a,2b,4a,4b-四氢-环丙并(cd)并环戊二烯

1,5-Cyclooctadiyne

4-Thia-2,6-diazahexacyclo(5.4.02,6.08,11.09,13.010,12)tridecane-3,5-dione

环十六碳烯