Ion-pair coordination driven stimuli-responsive one-dimensional supramolecular helicate.

Formation of an ion-pair i.e. Fe2+ and [Cl2(H2O)2]2- coordination driven one dimensional (1D) smart supramolecular helical assembly of a new heteroditopic ligand was achieved. Moreover, thermo- and chemo-responsive transformation/disassembly/reassembly of the helical superstructure was also demonstrated.