State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
Collaborative Innovation Centre of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, China.
Nat Commun. 2016 Aug 24;7:12469. doi: 10.1038/ncomms12469.
In nature, protein subunits on the capsids of many icosahedral viruses form rotational patterns, and mathematicians also incorporate asymmetric patterns into faces of polyhedra. Chemists have constructed molecular polyhedra with vacant or highly symmetric faces, but very little is known about constructing polyhedra with asymmetric faces. Here we report a strategy to embellish a C3h truxene unit with rotational patterns into the faces of an octahedron, forming chiral octahedra that exhibit the largest molar ellipticity ever reported, to the best of our knowledge. The directionalities of the facial rotations can be controlled by vertices to achieve identical rotational directionality on each face, resembling the homo-directionality of virus capsids. Investigations of the kinetics and mechanism reveal that non-covalent interaction among the faces is essential to the facial homo-directionality.
在自然界中，许多二十面体病毒衣壳上的蛋白质亚基形成旋转模式，数学家也将不对称模式纳入多面体的面中。化学家已经构建了具有空位或高度对称面的分子多面体，但对于构建具有不对称面的多面体知之甚少。在这里，我们报告了一种策略，即将旋转模式装饰到 C3h 三环单元上，形成八面体，形成手性八面体，据我们所知，其摩尔椭圆率是迄今为止报道的最大的。通过顶点可以控制面部的旋转方向，从而在每个面上实现相同的旋转方向，类似于病毒衣壳的同方向性。对面的动力学和机制的研究表明，面之间的非共价相互作用对于面部同方向性至关重要。
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