3-octyl-2-(3-octylthiophen-2-yl)thiophene

2-phenyl-5-thiophen-2-ylthiophene

tributyl-(5-thiophen-2-ylthiophen-2-yl)stannane

5,5′-双(三丁基甲锡烷基)-2,2′-二噻吩

5-(噻吩-2-基)噻吩-2-甲腈