Please use this identifier to cite or link to this item: https://doi.org/10.1021/jacs.0c08436
Title: Linkage Engineering by Harnessing Supramolecular Interactions to Fabricate 2D Hydrazone-Linked Covalent Organic Framework Platforms toward Advanced Catalysis
Authors: Cheng Qian
Weiqiang Zhou
Jingsi Qiao 
Dongdong Wang
Xing Li 
Wei Liang Teo
Xiangyan Shi
Hongwei Wu
Jun Di
Hou Wang
Guofeng Liu
Long Gu
Jiawei Liu
Lili Feng
Yuchuan Liu
Su Ying Quek 
Kian Ping Loh 
Yanli Zhao
Issue Date: 12-Oct-2020
Publisher: American Chemical Society
Citation: Cheng Qian, Weiqiang Zhou, Jingsi Qiao, Dongdong Wang, Xing Li, Wei Liang Teo, Xiangyan Shi, Hongwei Wu, Jun Di, Hou Wang, Guofeng Liu, Long Gu, Jiawei Liu, Lili Feng, Yuchuan Liu, Su Ying Quek, Kian Ping Loh, Yanli Zhao (2020-10-12). Linkage Engineering by Harnessing Supramolecular Interactions to Fabricate 2D Hydrazone-Linked Covalent Organic Framework Platforms toward Advanced Catalysis. Journal of the American Chemical Society 142 (42) : 18138 - 18149. ScholarBank@NUS Repository. https://doi.org/10.1021/jacs.0c08436
Abstract: Covalent organic frameworks (COFs) are an emerging class of crystalline porous polymers with tailor-made structures and functionalities. To facilitate their utilization for advanced applications, it is crucial to develop a systematic approach to control the properties of COFs, including the crystallinity, stability, and functionalities. However, such an integrated design is challenging to achieve. Herein, we report supramolecular strategy-based linkage engineering to fabricate a versatile 2D hydrazone-linked COF platform for the coordination of different transition metal ions. Intra- and intermolecular hydrogen bonding as well as electrostatic interactions in the antiparallel stacking mode were first utilized to obtain two isoreticular COFs, namely COF–DB and COF–DT. On account of suitable nitrogen sites in COF–DB, the further metalation of COF–DB was accomplished upon the complexation with seven divalent transition metal ions M(II) (M = Mn, Co, Ni, Cu, Zn, Pd, and Cd) under mild conditions. The resultant M/COF–DB exhibited extended π-conjugation, improved crystallinity, enhanced stability, and additional functionalities as compared to the parent COF–DB. Furthermore, the dynamic nature of the coordination bonding in M/COF–DB allows for the easy replacement of metal ions through a postsynthetic exchange. In particular, the coordination mode in Pd/COF–DB endows it with excellent catalytic activity and cyclic stability as a heterogeneous catalyst for the Suzuki–Miyaura cross-coupling reaction, outperforming its amorphous counterparts and Pd/COF–DT. This strategy provides an opportunity for the construction of 2D COFs with designable functions and opens an avenue to create COFs as multifunctional systems.
Source Title: Journal of the American Chemical Society
URI: https://scholarbank.nus.edu.sg/handle/10635/187063
ISSN: 00027863
DOI: 10.1021/jacs.0c08436
Appears in Collections:Elements
Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Linkage Engineering by Harnessing Supramolecular Interactions to Fabricate 2D Hydrazone-Linked Covalent Organic Framework Platforms toward Advanced Catalysis.pdf1.88 MBAdobe PDF

OPEN

Post-printView/Download

SCOPUSTM   
Citations

39
checked on Sep 29, 2022

Page view(s)

147
checked on Sep 29, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.