SELF-ASSEMBLY AND HOST-GUEST BEHAVIORS OF A SUPRAMOLECULAR HELICATE FEII 2L3

A novel helicate complex [FeII2L3]4+ resulted from subcomponent self-assembly of a C3-symmetric triamine, 2-formylpyridine and octahedral iron(II) in CH3CN, which was confirmed by ESI-MS measurement. After the addition of selected planar aromatic molecules in CD3CN solution, shifts of 1H NMR signals of the helicate were investigated. The results revealed that the size, functional group and symmetry of guest molecules remarkably influence the interaction patterns.