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具有良好的内部秩序的单层二维超分子有机框架

Martin Pfeffermann¹, Renhao Dong², Robert Graf¹

¹Max Planck Institute for Polymer Research , Ackermannweg 10, D-55128 Mainz, Germany.

Journal of the American Chemical Society

|November 4, 2015

概括

研究人员使用自组装创建了大型,有序的2D超分子有机框架 (2D SOF). 这一突破克服了先前方法的局限性, 允许在膜,传感器和光电子领域的新应用.

科学领域:

材料科学
超分子化学
纳米技术

背景情况:

动态自组合和自排序是创建分子精确的二维超分子有机框架 (2D SOF) 的关键.
现有的方法受限于小域大小,脆弱性和较差的远程顺序.

研究的目的:

开发一种用于合成大面积,分子精确的二维SOF单层的新方法.
克服现有的二维SOF自组装技术的局限性.

主要方法:

使用特定的特鲁克森和纳二胺单体和库库比特[8]uril进行了宿主-客体增强的供体-接受体相互作用.
使用液体-液体接口自组装以形成不溶性薄膜.
通过传输电子显微镜,原子力显微镜和光学显微镜来描述所产生的单层.

主要成果:

实现了前所未有的二维SOF单层,面积大 (高达0.25厘米2),厚度为1.8纳米.
片显示在10μm2的孔中具有独立的功能.
通过光谱和X射线散射确认成功的单体复合,内部远程顺序和六角超构.

结论:

开发了一种用于制造大面积二维SOF的多功能超分子方法.
这种方法克服了以前的大小,脆弱性和秩序的局限性.
潜在的应用包括膜,传感器,分子和光电子由于可适应的功能单体.

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