Complex assembly from planar and twisted π-conjugated molecules towards alloy helices and core-shell structures
| Autor: | Yilong Lei, Zhengong Meng, Hongbing Fu, Haihua Zhang, Wai Yeung Wong, Jiannian Yao, Hongyang Zhang, Yan-Qiu Sun, Yi Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Science Alloy General Physics and Astronomy 02 engineering and technology engineering.material Conjugated system 010402 general chemistry Epitaxy 01 natural sciences Article General Biochemistry Genetics and Molecular Biology chemistry.chemical_compound Planar Molecule lcsh:Science Anthracene Multidisciplinary technology industry and agriculture General Chemistry 021001 nanoscience & nanotechnology Microstructure equipment and supplies 0104 chemical sciences Organic semiconductor Crystallography chemistry engineering lcsh:Q 0210 nano-technology |
| Zdroj: | Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | 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 layer on the surface of BA tube to form BA@(BA)x(BN)1−x core-shell structure is also achieved via a solute exchange process. The precise control over composition and morphology towards organic alloy helices and core-shell microstructures opens a door for understanding the complex co-assembly features of two or more different material partners with similar structures. Manipulating the assembly of π-conjugated organic molecules into alloys to control composition and shape remains a largely unsolved problem. Here the authors show the co-assembly of two structurally similar organic semiconductors into two-component helices by control of their growth kinetics as well as the molar ratio of the building blocks. |
| Databáze: | OpenAIRE |
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