Complex assembly from planar and twisted π-conjugated molecules towards alloy helices and core-shell structures.

ABSTRACT: Integrating together two dissimilar π-conjugated molecules into controlled complex topological configurations remains a largely unsolved problem owing to the diversity of organic species and their respective different assembly features. Here, we find that two structurally similar organic semiconductors, 9,10-bis(phenylethynyl)anthracene (BA) and 5,12-bis(phenylethynyl)naphthacene (BN), co-assemble into two-component helices by control of the growth kinetics as well as the molar ratio of BA/BN. The helical superstructures made of planar and twisted bis(phenylethynyl) derivatives can be regarded as (BA)_x(BN)_1-x alloys, which are formed due to compatible structural relationship between BA and BN. Moreover, epitaxial growth of (BA)_x(BN)_1-x alloy laye

SUBMITTER: Lei Y 

PROVIDER: S-EPMC6195596 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature