3,5-Dithia-4-tellura-cyclopenta[f]azulene

1,2-bis(2-bromothiophen-3-yl)ethyne

[(Z)-1-Bromo-2-(2-bromo-thiophen-3-yl)-vinyl]-trimethyl-silane

Trimethyl-selenolo[2,3-b]thiphen-5-yl-silane

Trimethyl-tellurolo[2,3-b]thiphen-5-yl-silane