Abstract
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.
Original language | English |
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Pages (from-to) | 588-599 |
Number of pages | 12 |
Journal | National Science Review |
Volume | 7 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1 2020 |
Keywords
- C-symmetry
- aggregation-induced emission (AIE)
- architecture chirality
- multi-layer 3D chirality
- multi-layered organic framework (M-LOF)
- organo sandwich chirality