Arrangement of well-designed p-systems, especially those responsive to metal ions and anions, in ordered structures is highly important for exhibiting electronic and electrooptical properties.  That is, apart from ion sensing and transporting, ion binding enables the control of the states of p-systems as observed in supramolecular assemblies.  In fact, anion complexes of the anion-responsive p-systems have been found to provide ion-based assembled structures as thermotropic liquid crystals by combination with appropriate cationic species.  In contrast to charge-by-charge assemblies with alternately stacking oppositely charged species, it is challenging to fabricate charge-segregated assemblies, with stacking identical charged species, due to their electrostatic repulsion.   A promising strategy to induce charge-segregated mode is the use of preferable metal���metal interactions worked in cationic metal complexes.  Derived from favorable overlap of charged p-planes, ion-based materials with the contribution of charge-segregated arrangements provided charge carrier mobilities, which are often larger than corresponding charge-by-charge-based materials, showing superior semi-conductive properties.  Highly ordered arrangement of charged species has been found to be a key factor to exhibit the enhanced performance as fascinating electronic materials.

Supramolecular assemblies comprising anion-binding and metal-coordinating p-conjugated ionic building units

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.