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首页> 外文期刊>Chemistry: A European journal >Giant porphyrin disks: Control of their self-assembly at liquid-solid interfaces through metal-ligand interactions
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Giant porphyrin disks: Control of their self-assembly at liquid-solid interfaces through metal-ligand interactions

机译：巨型卟啉盘：通过金属-配体相互作用控制其在液-固界面处的自组装

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摘要

The synthesis and self-assembly behaviour of porphyrin dodecamers 1H(2) and Zn-1, which consist of twelve porphyrins that are covalently attached to a central aromatic core, is described. According to STM, 1D and 2D NMR studies, and molecular modelling calculations, the porphyrin dodecamers have a yo-yo-shaped structure. Their large pi surface, in combination with their disk-like shape, allows them to form self-assembled structures, which in the case of Zn-1 can be tuned by adding biden-late ligands. The self-assembly of the molecules at the liquid-solid interface of 1-phenyloctane with highly oriented pyrolytic graphite or Au(111) was imaged by using STM. The porphyrin disks in the self-assembled arrays have an edge-on orientation on the surface. The addition of bidentate axial ligands to the Zn-1 molecules in the arrays allows their intermolecular distance to be precisely controlled.
机译：描述了卟啉十二聚体1H（2）和Zn-1的合成和自组装行为，它们由共价连接到中心芳香核的十二个卟啉组成。根据STM，1D和2D NMR研究以及分子模型计算，卟啉十二聚体具有溜溜形结构。它们的大pi表面，再加上其盘状形状，使它们能够形成自组装结构，在Zn-1的情况下，可以通过添加二联体配体来对其进行调节。使用STM对1-苯基辛烷与高取向热解石墨或Au（111）的液-固界面处的分子自组装进行成像。自组装阵列中的卟啉盘在表面上具有边沿定向。向阵列中的Zn-1分子中添加双齿轴向配体可精确控制其分子间距离。

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