5-[2-(3,4-dibutylthiophen-2-yl)ethynyl]-2-[5-[2-(3,4-dibutylthiophen-2-yl)ethynyl]pyridin-2-yl]pyridine

5-[(3,4-dibutylthien-2-yl)ethynyl]-5'-ethynyl-2,2'-bipyridine

5,5'-bis[4-(diallylethoxysilyl)phenylethynyl]-2,2'-bipyridine

5,5'-([2,2'-bipyridine]-5,5'-diylbis(ethyne-2,1-diyl))bis(2,9-bis(2,4-dimethylpentan-3-yl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetraone)

5,5'-bis(2-(6-(1,3-dioxolan-2-yl)pyridin-3-yl)ethyl)-2,2'-bipyridine