State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States.
J Am Chem Soc. 2020 Oct 14;142(41):17340-17345. doi: 10.1021/jacs.0c09598. Epub 2020 Oct 5.
Chiral metal-organic complexes hold great promise as new functional materials that exhibit unique stereochemical and optical properties. Here, we report the formation of optically pure pillar[5]arene-based platinum chiral metallacycles. By coordination with 60° and 90° Pt(II) acceptors, planar chiral platinum triangles were self-assembled efficiently and characterized by multiple spectroscopic techniques. Optical studies indicated that these metallacycles had chiral properties: enantiomers showed a negative Cotton effect, and enantiomers exhibited a positive Cotton effect. In addition, these metallacycles also exhibited circularly polarized luminescence.
手性金属有机配合物作为新型功能材料具有独特的立体化学和光学性质，具有广阔的应用前景。在此，我们报告了手性金属冠醚的形成。通过与 60°和 90°Pt(II)受体配位，平面手性铂三角形得到了有效的自组装，并通过多种光谱技术进行了表征。光学研究表明，这些金属配合物具有手性性质：对映体表现出负的 Cotton 效应，而对映体表现出正的 Cotton 效应。此外，这些金属配合物还表现出圆偏振发光。
