Size selective self-sorting in coordination-driven self-assembly of finite ensembles
Size selective self-sorting in coordination-driven self-assembly of finite ensembles
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DOI：
10.1021/ic800038j
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发表时间：
2008-06-02
影响因子：
4.6
通讯作者：
Stang, Peter J.
中科院分区：
文献类型：
--
作者：
Zheng, Yao-Rong;Yang, Hai-Bo;Stang, Peter J.
提出了坐标驱动的二维多边形和三维笼形自组装中的尺寸选择性自排序。两种类型的多边形（矩形和三角形）的不同大小的自发形成的混合物内的分子“剪辑”或60度的有机铂受体与联吡啶连接的不同长度的通过自分选。此外，两个不同大小的3-D超分子笼形成后，混合一个ditopic有机铂受体和两个不同大小的tritopic供体从自分选过程。这些多边形和笼的形成，其特征在于使用NMR光谱和电喷雾电离质谱（ESI-MS）。在所有情况下，自分选过程由供体结构单元的大小和动态的、由化学驱动的自校正过程指导，导致从复杂混合物形成离散产物。
Size selective self-sorting in the coordination-driven self-assembly of two-dimensional (2-D) polygons and three-dimensional (3-D) cages is presented. Two types of polygons (rectangular and triangular) of different size are formed spontaneously from within mixtures of a molecular "clip" or a 60 degrees organoplatinum acceptor with dipyridyl linkers of different lengths via self-sorting, Furthermore, two different sized 3-D supramolecular cages are formed upon mixing one ditopic organoplatinum acceptor and two different sized tritopic donors from the self-sorting process. The formation of these polygons and cages is characterized using NMR spectroscopy and electrospray ionization mass spectrometry (ESI-MS). In all cases, the self-sorting process is directed by the size of the donor building blocks and a dynamic, thermodynamically driven self-correction process resulting in the formation of discrete products from complex mixtures.