A Copper-Containing Polyoxometalate-Based Metal-Organic Framework as an Efficient Catalyst for Selective Catalytic Oxidation of Alkylbenzenes

Baijie Xu; Qian Xu; Quanzhong Wang; Zhen Liu; Ruikun Zhao; Dandan Li; Pengtao Ma; Jingping Wang; Jingyang Niu

doi:10.1021/acs.inorgchem.0c03741

A Copper-Containing Polyoxometalate-Based Metal-Organic Framework as an Efficient Catalyst for Selective Catalytic Oxidation of Alkylbenzenes

Inorg Chem. 2021 Apr 5;60(7):4792-4799. doi: 10.1021/acs.inorgchem.0c03741. Epub 2021 Mar 14.

Authors

Baijie Xu¹, Qian Xu¹, Quanzhong Wang¹, Zhen Liu¹, Ruikun Zhao¹, Dandan Li¹, Pengtao Ma¹, Jingping Wang¹, Jingyang Niu¹

Affiliation

¹ Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.

PMID: 33715352
DOI: 10.1021/acs.inorgchem.0c03741

Abstract

A copper-containing polyoxometalate-based metal-organic framework (POMOF), Cu^I₁₂Cl₂(trz)₈[HPW₁₂O₄₀] (HENU-7, HENU = Henan University; trz = 1,2,4-triazole), has been successfully synthesized and well-characterized. In addition, the excellent catalytic ability of HENU-7 has been proved by the selective oxidation of diphenylmethane. Under the optimal conditions, the diphenylmethane conversion obtained over HENU-7 is 96%, while the selectivity to benzophenone is 99%, which outperforms most noble-metal-free POM-based catalysts. Moreover, HENU-7 is stable to reuse for five runs without an obvious loss in activity and also can catalyze the oxidation of different benzylic C-H with satisfactory conversions and selectivities, which implied the significant catalytic activity and recyclability.