A significant property of macrocyclic polyamines is their ability to form stable complexes with transition metal ions. In this regard, cyclic tetraamines have been the most extensively studied macrocycles.'J However, there is now considerable interest in elucidating the coordination properties of tri-and hexaamine macrocycles due to the novel structural features of the resulting metal complexes. Recent studies3+ with small, cyclic triamines ...
[Hoogenboom, Richard; Fijten, Martin W. M.; Kickelbick, Guido; Schubert, Ulrich S. Beilstein Journal of Organic Chemistry, 2010 , vol. 6, p. 773 - 783]