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Updated: May 9, 2025

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
Rhodium catalysts supported on phosphorus-rich covalent organic polymers for sustainable hydrosilylation of alkynes
Xin Liu1, Xinxin Han1, Jiaxi Cai1
1School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China. mingyouhu@xjtu.edu.cn.
Abstract:
Heterogeneous rhodium catalysts supported on phosphorus-rich covalent organic polymers provide a sustainable solution to the scarcity of Rh resources in the chemical industry. We synthesized COP-PPh3 by utilizing triphenylphosphine as monomers and then supported rhodium on COP-PPh3 to generate the heterogeneous Rh catalyst COP-PPh3-RhCl. This catalyst demonstrated excellent catalytic activity and substrate adaptability in alkyne hydrosilylation reactions. Even after five reuse cycles, COP-PPh3-RhCl maintained high catalytic activity and structural stability, with consistent Rh loading amounts. This approach effectively addresses challenges related to recycling and reusing homogeneous precious metal catalysts, offering a promising strategy to alleviate precious metal scarcity and reduce environmental pollution risks.
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