Photoreactive helical nanoaggregates exhibiting morphology transition on thermal reconstruction.

ABSTRACT: The supramolecular design of photochromic molecules has produced various smart molecular assemblies that can switch their structures and/or functions in response to light stimuli. However, most of these assemblies require large structural changes of the photochromic molecules for an efficient conversion of assembled states, which often suppresses the photoreactivity within the self-assemblies. Here we report molecular assemblies, based on a photo-cross-linkable chromophoric dyad, in which a small amount of ultraviolet-generated photochemical product can guide the entire system into different assembly processes. In apolar solution, the intact dyad self-assembles into right-handed superhelical fibrils. On ultraviolet-irradiation of these fibrils, an effective photoreaction affords a sole pho

SUBMITTER: Yamauchi M 

PROVIDER: S-EPMC4673833 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature