Enantioselective assembly of multi-layer 3D chirality
| Autor: | Zhen Yang, Guanzhao Wu, Sultan Ahmed, Anis Ur Rahman, Nandakumar Katakam, Daniel K. Unruh, Hongen Huang, Hossein Rouh, Liulei Ma, Guigen Li, Tao Jiang, Yao Tang, Yangxue Liu |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Multidisciplinary
Materials science 010405 organic chemistry AcademicSubjects/SCI00010 Enantioselective synthesis multi-layer 3D chirality C2-symmetry Aromaticity architecture chirality 010402 general chemistry 01 natural sciences 0104 chemical sciences Crystallography Chemistry Planar Axial chirality Molecule organo sandwich chirality multi-layered organic framework (M-LOF) aggregation-induced emission (AIE) Enantiomer Luminescence Chirality (chemistry) AcademicSubjects/MED00010 Research Article |
| Zdroj: | National Science Review |
| ISSN: | 2053-714X 2095-5138 |
| Popis: | The first enantioselective assembly of sandwich-shaped organo molecules has been achieved by conducting dual asymmetric Suzuki-Miyaura couplings and nine other reactions. This work also presents the first fully C-C anchored multi-layer 3D chirality with optically pure enantiomers. As confirmed by X-ray diffraction analysis that this chiral framework is featured by a unique C2-symmetry in which a nearly parallel fashion consisting of three layers: top, middle and bottom aromatic rings. Unlike the documented planar or axial chirality, the present chirality shows its top and bottom layers restrict each other from free rotation, i.e., this multi-layer 3D chirality would not exist if either top or bottom layer is removed. Nearly all multi-layered compounds showed strong luminescence of different colors under UV irradiation, and several randomly selected samples displayed aggregation-induced emission (AIE) properties. This work is believed to have broad impacts on chemical, medicinal and material sciences including optoelectronic materials in future. |
| Databáze: | OpenAIRE |
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