A Pyrene-Based, Fluorescent Three-Dimensional Covalent Organic Framework,Journal of the American Chemical Society

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A Pyrene-Based, Fluorescent Three-Dimensional Covalent Organic Framework
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2016-03-03 , DOI: 10.1021/jacs.6b00652
Guiqing Lin ₁ , Huimin Ding ₁ , Daqiang Yuan ₂ , Baoshan Wang ₁ , Cheng Wang ₁

Affiliation

The targeted synthesis of 3D COFs has been considered challenging, especially adopting new topologies and bearing photoelectric units. Herein, for the first time, we report the synthesis and characterization of a novel 3D pyrene-based COF (3D-Py-COF), by selectively choosing the geometry of the precursors and the connection patterns. Based on X-ray diffraction measurement and detailed simulations, 3D-Py-COF is proposed to adopt a two-fold interpenetrated pts topology, which has never been reported before. In addition, 3D-Py-COF has a narrow pore size distribution and high surface area and also features selective absorption of CO2 over N2. Interestingly, due to the existence of isolated pyrene units in the 3D framework, 3D-Py-COF is the first fluorescent 3D COF and can be used in explosive detection. Our results not only show it is possible to rationally design and synthesize 3D COFs with other topologies but also demonstrate that the incorporation of photoelectric units into 3D COFs can allow the resulting materials with interesting properties.

中文翻译：

基于芘的荧光三维共价有机框架

3D COFs 的靶向合成一直被认为具有挑战性，尤其是采用新的拓扑结构和承载光电单元。在此，我们首次通过选择性地选择前体的几何形状和连接模式，报道了一种新型 3D 芘基 COF（3D-Py-COF）的合成和表征。基于 X 射线衍射测量和详细模拟，3D-Py-COF 被提议采用双重互穿 pts 拓扑结构，这是以前从未报道过的。此外，3D-Py-COF 具有狭窄的孔径分布和高表面积，并且还具有比 N2 选择性吸收 CO2 的特性。有趣的是，由于 3D 框架中存在孤立的芘单元，3D-Py-COF 是第一个荧光 3D COF，可用于爆炸物检测。

更新日期：2016-03-03

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