Robin and Chris’s paper, ‘Quantifying Ligand Exchange Reactions at CdSe Nanocrystal Surfaces,’ was just published in Chemistry of Materials. In this paper, X-type ligand exchange reactions were examined via NMR. By utilizing an exchange ligand with a terminal alkene group, which provided an NMR handle, the exchange reactions could be fully quantified. Studies revealed that caroboxylic acid ligands are in equilibrium with one another, but phosphonic acid and thiol terminated ligands irreversibly displace carboxylic acid terminated ligands.
