Foldable pi-Stacked Multinuclear Architectures and Helical Metallopolymers: Conformation and Function
DescriptionInterest in artificial helices stems from the prevalence of helical structures in Nature and their remarkably diverse functionality. The focus of this proposal is the design, synthesis and application of helical metallopolymers and pi-stacked multinuclear architectures. Notwithstanding coordination polymers, in which the metal cores are often saturated and inert, functional metal-organic polymers (featuring unsaturated metal centers) that undergo helical self-organization are underdeveloped. New classes of helical conjugated metallopolymers of different topologies are proposed, which are susceptible to dynamic conformational changes because the helix formation is directed by intramolecular non-covalent interactions. Studies focusing on chiroptical and photophysical properties and responses will be conducted, and a primary consideration is the spatial arrangement and alignment of metal-organic functional groups and luminophores. The development of stackable aromatic systems that can undergo pi-mediated self-assembly, and examination of the effects of structural and substituent effects on aggregation behavior, will be undertaken. It is envisaged that applications in luminescent and chiral sensing can be realized, and potential biological and materials functions will be investigated. In essence, this research concerns the design and control of intermolecular versus intramolecular interactions in metal-Schiff base and related systems.
|Effective start/end date||1/01/13 → 16/06/17|