N-heterocyclic carbene dimerization has been used to synthesize a sp²-carbon-conjugated covalent organic framework for the first time. Due to its unique tetraazafulvalene linkages, the resultant COF is strongly reducing, enabling stabilization of the rarely isolable tetracyanoethylene radical anion within its pores.

中文翻译：

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由 N-杂环卡宾二聚化形成的强还原 sp2 碳共轭共价有机框架


N-杂环卡宾二聚化首次用于合成 sp²-碳共轭共价有机框架。由于其独特的四氮杂黄戊烯键，所得的 COF 具有很强的还原性，能够稳定其孔内难以分离的四氰基自由基阴离子。