Hexagonally Ordered Nanostructures Comprised of a Flexible Disk-like Molecule with High Self-Assembling Properties at Neutral and Cationic States

摘要

We have synthesized a novel TTF hexamer 1 with a flexible disk-like structure, weak amphiphilic nature, and strong self-aggregation properties. Nanowires fabricated from 1 in a CHCl_3/hexane solution have a hexagonal columnar structure, reflecting the lateral and π-π stacking interactions of its disk-like frame. Furthermore, we have also succeeded in formation of fibrous material with a hexagonal columnar structure from 1~(·+)·ClO_4". We believe this is a quite rare example of nanowires prepared from organic ion radical salts. The electric conductivity of the wire of 1~(·+) is 2 orders of magnitude higher than that of the film of 1~(·+), reflecting their nanostructured, one-dimensional morphologies.