期刊
DALTON TRANSACTIONS
卷 48, 期 21, 页码 7352-7357出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8dt05056b
关键词
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资金
- National Natural Science Foundation of China [21571079, 21621001, 21390394, 21571076, 21571078]
- 111 project [B07016, B17020]
- Guangdong Science and Technology Department [2012D0501990028]
- program for JLU Science and Technology Innovative Research Team
- Thousand Talents program (China)
Covalent organic frameworks (COFs) are crystalline porous solids with broad potential applications. So far, the successful construction of COFs has been limited to a few condensation reactions, and nearly all COFs were obtained by single-step synthesis based on predesigned linkers. Here, we report a general strategy in view of a one-pot cascade reaction to prepare both microporous and mesoporous fully -conjugated pyrazine-linked COF materials (PZ-COFs). The obtained PZ-COFs show high chemical stability, large specific surface areas and promising H-2, CH4 and CO2 uptake capacities. Furthermore, we demonstrate that manganese(ii)-incorporated PZ-COFs can act as excellent Lewis-acid catalysts for the cyanosilylation of aromatic aldehydes. This study not only provides a facile method to synthesize COFs required for multistep reactions but also expands the applications of COFs as promising catalysts.
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