Macrocyclic ligands designed to impose tetrahedral coordination: [1-(3-dimethylaminopropyl)-1,5,9-triazacyclododecane], L1, [1{2-(pyrrolidin-1-yl)ethyl}-1,5,9-triazacyclododecane], L2, and their zinc(II) complexes
The all-propyl-linked pendent-arm triazamacrocycle 1-(3-dimethylaminopropyl)-1,5,9-triazacyclododecane encapsulates zinc(II) to give a tetrahedral complex.