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Triptycene-based Three-Dimensional Covalent Organic Frameworks with stp Topology of Honeycomb Structure

preprint
submitted on 08.07.2020 and posted on 08.07.2020 by Yuancheng Wang, Chenyu Wu, Wenjia Sun, Qingyan Pan, Wenbo Hao, Hui Liu, Jing Sun, Zhibo Li, Junliang Sun, Yingjie Zhao
Two three-dimensional covalent organic frameworks (3D COFs) adopting triptycene as core building blocks were synthesized through [6 + 4] imine condensation reactions. The stp topology and the “6 + 4” linking mode were first reported for constructing 3D COFs. A pore size of 4.0 nm was obtained which is the largest record among the reported 3D COFs. The interpenetration occurred by extending the size of the linkage. The rigid 3D COFs exhibit unique honeycomb nanochannels structures with adjustable pore sizes.

History

Email Address of Submitting Author

yz@qust.edu.cn

Institution

Qingdao University of Science and Technology

Country

China

ORCID For Submitting Author

0000-0002-2668-3722

Declaration of Conflict of Interest

The authors declare no competing financial interest

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