Large (M > 10 kDa) heterometallic coordination cages with gyrobifastigium-like geometry are obtained by using metalloligands with sterically demanding Fe clathrochelate cores and four divergent pyridyl groups. Upon reaction with cis-blocked Pt and Pd complexes, ML 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 ML stoichiometry.
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