Combining a self-complementary zwitterion with metal-ligand binding sites (e.g. terpyridines, catechols, bipyridine) self-assembling molecules with two orthogonal interactions are obtained. Depending on the conditions (e.g. pH, presence/absence of metal ions) different types of self-assembled aggregates are formed such as ion-paired dimers, metal-complexes, linear or three-dimensional polymers. Aggregation can also lead to gel formation in polar solvents. The gels respond to different stimuli such as pH, temperature or competing ligands. One such example is shown in the following figure. Figure 1. <img src='https://acs-archive-assets2.s3.amazonaws.com/241nm/uploads/63878_figure1.jpg' alt='' />

Metallo-supramolecular polymers with multiple switching modes

248th National Meeting (2014)

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