双金属片
催化作用
亚胺
共价键
铑
化学
钯
级联
组合化学
金属
级联反应
合理设计
有机化学
纳米技术
材料科学
色谱法
作者
Wenguang Leng,Yongsheng Peng,Jianqiang Zhang,Hui Lü,Xiao Feng,Rile Ge,Bin Dong,Bo Wang,Xiang‐Ping Hu,Yanan Gao
标识
DOI:10.1002/chem.201601334
摘要
Abstract Precise control of the number and position of the catalytic metal ions in heterogeneous catalysts remains a big challenge. Here we synthesized a series of two‐dimensional (2D) covalent organic frameworks (COFs) containing two different types of nitrogen ligands, namely imine and bipyridine, with controllable contents. For the first time, the selective coordination of the two nitrogen ligands of the 2D COFs to two different metal complexes, chloro(1,5‐cyclooctadiene)rhodium(I) (Rh(COD)Cl) and palladium(II) acetate (Pd(OAc) 2 ), has been realized using a programmed synthetic procedure. The bimetallically docked COFs showed excellent catalytic activity in a one‐pot addition–oxidation cascade reaction. The high surface area, controllable metal‐loading content, and predesigned active sites make them ideal candidates for their use as heterogeneous catalysts in a wide range of chemical reactions.
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