Variations on a Cage Theme: Some Complexes of Bycyclic Polyamines as Supramolecular Synthons

I.J. Clark, A. Crispini, P.S. Donnelly, L.M. Engelhardt, J.M. Harrowfield, S. Jeong, Y. Kim, George Koutsantonis, Y.H. Lee, Nigel Lengkeek, M. Mocerino, Gareth Nealon, M.I. Ogden, Y.C. Park, C. Pettinari, L. Polanzan, E. Rukmini, A.M. Sargeson, Brian Skelton, Alexandre SobolevP. Thuert, Allan White

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


Analysis of a body of crystallographic information concerning metal(ii) and metal(iii) complexes of macrobicyclic hexamine ligands and some of their derivatives provides evidence for the action of a variety of intermolecular forces within the lattices. Hydrogen bonding is universal and its forms depend strongly upon the oxidation state and the particular nature of the metal ion bound to the macrobicycle. The introduction of both aliphatic and aromatic substituents leads to lattices in which these substituents associate, although, in the case of aromatic substituents, this is not necessarily a consequence of ‘π-stacking’, despite the fact that the aromatic ring planes form parallel arrays. At least in the case of CoIII, stable enantiomers of the complexes can be obtained, and in {Δ-(+)589-[Co{(NH3)(CH3)sar}]}2Cl2(C6(CO2)6)·26H2O (sar = 3,6,10,13,16,19-hexa-azabicyclo[6.6.6]icosane), the benzene hexacarboxylate anion adopts a chiral conformation in the presence of the optically active cation.
Original languageEnglish
Pages (from-to)1246-1260
JournalAustralian Journal of Chemistry: an international journal for chemical science
Issue number10
Publication statusPublished - 2009


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