4,4'-Bis(diethylmethylphosphonate)-2,2'-bipyridine
4,4'-Bis(diethylmethylphosphonate)-2,2'-bipyridine is a molecule that is covalently tethered to the copper oxide surface. The coordination of the 4,4'-bis(diethylmethylphosphonate)-2,2'-bipyridine ligand with the copper oxide surface is catalytic and bifunctional. This molecule has been shown to be able to coordinate with two different metal ions as well as act as a ligand for other metal ions. It can also be functionalized in order to create new molecules with different properties.