4,4-dimethyl-1,2-diselenacyclopentane

4,5-diphenyl-3,6-dihydrodithiine 1-oxide

(2-苯基-1-环丁烯基)苯

2,4,5-triphenyl-2-sulfanylidene-3,6-dihydro-1,2λ⁵-thiaphosphinine

1,1'-[(2Z)-2-丁烯-2,3-二基]二苯