| 초록 |
A disc-shaped achiral macrogelator (B1AZ) was designed and synthesized for investigation of light-responsive phase chirality in the solid state. A lamella-columnar structure in the bulk state of B1AZ was constructed by self-assembly of cores of B1AZ molecules. In contrast, in carvone chiral solvents achiral B1AZ molecules constructed single-handed helical fibrils with 400 nm of helical pitch by side-by-side lateral association of themselves. After the elimination of the chiral solvents, the helical fibril structures were maintained with its chiropical properties. However, helical fibril structures were sensitive to UV light due to their packing structures and azobenzene of B1AZ which can induce the trans-to-cis photo-isomerization. This work was supported by BK21 Plus program, the BRL 2015042417, Mid-Career Researcher Program (2016R1A2B2011041), and NRF-2017 Global Ph.D. Fellowship Program (NRF-2017H 1A 2A 1045855). |
