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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Concentration dependent supramolecular interconversions of triptycene-based cubic, prismatic, and tetrahedral structures
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Concentration dependent supramolecular interconversions of triptycene-based cubic, prismatic, and tetrahedral structures

机译:浓度依赖于三维碳的立方,棱柱形和四面体结构的超分子互联

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摘要

The quantitative, single step, self-assembly of a shape-persistent, three-dimensional C(3)v-symmetric, triptycene-based tris-terpyridinyl ligand initially gives a platonic-based cubic architecture, which was unequivocally characterized by 1D and 2D NMR spectroscopy, mass spectrometry, and single crystal X-ray structural analysis. The unique metal-ligand binding properties of the Cd2+ analogue of this construct give rise to a concentration-dependent dynamic equilibrium between cube, prism, and tetrahedron-shaped architectures. Dilution transforms this cube into two identical tetrahedra through a stable prism-shaped intermediate; increasing the concentration reverses the process.
机译:定量,单步,形状持续,三维C(3)V-对称,基于三维三苯吡啶基配体的定量,单步,三维C(3)V-吡啶基配体最初给出了基于柏拉图的立方架构,其明确以1D和2D为特征的特征 NMR光谱,质谱和单晶X射线结构分析。 该构建体CD2 +类似物的独特金属配体结合性能导致立方体,棱镜和四面体架构之间的浓度依赖性动态平衡。 稀释度通过稳定的棱镜形中间体将该立方体转化为两个相同的四面体; 增加浓度逆转过程。

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