Sapphyrin oligomer

The primary impetus for preparing each of the oligosapphyrins described above, and indeed all of the three-dimensional sapphyrins, was to obtain systems capable of binding multiply charged anionic species with high specificity and affinity. This was obtained, with remarkable success, in the case of the sapphyrin oligomers. These systems were found to function as remarkably good receptors of dicarboxylate anions, nucleotide di- and triphosphates, and amino acids. ... 

---