Large heterometallic coordination cages with gyrobifastigium-like geometry

Chem Commun (Camb). 2016 Sep 13;52(75):11243-11246. doi: 10.1039/c6cc06066h.

Abstract

Large (Mw > 10 kDa) heterometallic coordination cages with gyrobifastigium-like geometry are obtained by using metalloligands with sterically demanding FeII clathrochelate cores and four divergent pyridyl groups. Upon reaction with cis-blocked PtII and PdII complexes, ML4 cages are formed. The gyrobifastigium geometry of these cages is in contrast to the barrel-like structures which are typically observed for metallasupramolecular assemblies with M8L4 stoichiometry.