Molecular tectonics: design of coordinating tectons based on diazamacrocycles bearing pyridine units and formation of 1D copper coordination networks

Four new bis monodentate tectons 1-4 based on the diazadioxa (5)- and diazatetraoxa (6)-macrocyclic backbones bearing two pyridine units as coordinating sites have been designed and prepared. In the presence of copper diacetate, their ability to form coordination networks was demonstrated by structural studies based on X-ray diffraction methods. Both tectons 1 and 2 behave as bis monodentate units and their bridging by copper diacetate dimer behaving as a linear metallatecton leads to the formation of analogous 1D coordination networks.