Copper-Containing Polyoxometalate-Based Metal-Organic Framework as a Catalyst for the Oxidation of Silanes: Effective Cooperative Catalysis by Metal Sites and POM Precursor

Xinyi Ma; Zhen Jing; Kunhong Li; Yian Chen; Dandan Li; Pengtao Ma; Jingping Wang; Jingyang Niu

doi:10.1021/acs.inorgchem.1c03835

Copper-Containing Polyoxometalate-Based Metal-Organic Framework as a Catalyst for the Oxidation of Silanes: Effective Cooperative Catalysis by Metal Sites and POM Precursor

Inorg Chem. 2022 Mar 7;61(9):4056-4061. doi: 10.1021/acs.inorgchem.1c03835. Epub 2022 Feb 18.

Authors

Xinyi Ma¹, Zhen Jing¹, Kunhong Li¹, Yian Chen¹, 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 475004, Henan P.R. China.

PMID: 35179868
DOI: 10.1021/acs.inorgchem.1c03835

Abstract

The oxidation of silanes into silanols is a very necessary transformation, and yet the rational fabrication of efficient catalysts for this reaction remains a challenging task. Here, a 3D polyoxometalate-based metal-organic framework (POMOF), [Cu^Ι₃(pz)₃{PMo₁₂O₄₀}]·H₂O (HENU-8, HENU = Henan University; pz = pyrazine) was consciously prepared and first employed in the oxidation of dimethylphenylsilane with tert-butyl hydroperoxide (TBHP) as an oxidant, achieving 89% yield at a production rate of 132 mmol·g^-1·h^-1. Control experiments indicated that polyoxometalates and Cu atoms together affected the ultimate outcome in this catalytic system, and the designed catalyst followed a free radical mechanism.