Dedicated to Professor Bohdan Korybut-Daszkiewicz on the occasion of his 77th birthday. A number of novel tetracyano-substituted dihydrotetraaza[14] annulene (DH-TAA) analogues were obtained in a simple and convenient way by one-pot synthesis. The ligands, as well as their complexes with nickel(II), copper(II) and palladium(II) ions were characterised, including X ray structures for seven compounds. The X-ray analysis shows relatively short distances between tetraazamacrocyclic rings (3.0-3.3 Å), resulting from the presence of strong π-π interactions. Moreover, some of synthesised compounds can easily be modified in order to attach commonly used reactive groups, which makes them very promising as future components of π-interaction based supramolecular systems [a
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.