Beijing National Laboratory for Molecular Sciences, Center for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, No.2 1st North Street, Zhongguancun, Beijing, 100190, P.R. China.
Sci Rep. 2017 Sep 11;7(1):11156. doi: 10.1038/s41598-017-11006-5.
The discovery of graphene kicked off the curtain of atom-type two-dimensional (2D) materials. Layered metal-organic frameworks (MOFs) as parallel molecule-based 2D materials are more designable and more diverse, and magnetism may be induced by their metal ion nodes. However, the multifunctional 2D plane-like MOFs are very difficult to obtain. Here we describe a Chinese pane-like 2D MOF constructed from the Ln cation and the nanoscale luminescent tritopic ligand tris(4'-carboxybiphenyl)-amine, responding to the slow magnetic relaxation and luminescence properties, respectively. Notably, the Dy-Dy distances separated by the tritopic ligand are up to 2 nm. Such a 2D molecular material is expected to have potential applications in optoelectronics and multimodal sensing.
石墨烯的发现拉开了原子型二维（2D）材料的帷幕。层状金属-有机骨架（MOFs）作为平行的基于分子的 2D 材料，更具可设计性和多样性，并且其金属离子节点可能会诱导出磁性。然而，多功能的 2D 类平板 MOFs 非常难以获得。在这里，我们描述了一种由Ln 阳离子和纳米级发光三联吡啶配体三（4'-羧基联苯）-胺构建的中国平板状 2D MOF，分别对其慢磁弛豫和发光性能做出响应。值得注意的是，三吡啶配体分隔的 Dy-Dy 距离长达 2nm。这种 2D 分子材料有望在光电和多模态传感中具有潜在应用。
