A new porous Co(II)-metal–organic framework for high sorption selectivity and affinity to CO2 and efficient catalytic oxidation of benzyl alcohols to benzaldehydes

Yun-Long Wu; Rong-Rong Yang; Guo-Ping Yang; Yang-Tian Yan; Xiao-Lei Su; Xin-Hai He; Yan-Yan Song; Zheng-Sheng Ma; Yao-Yu Wang

doi:10.1039/D1CE00250C

A new porous Co(ii)-metal–organic framework for high sorption selectivity and affinity to CO₂ and efficient catalytic oxidation of benzyl alcohols to benzaldehydes†

Yun-Long Wu,

*^ab Rong-Rong Yang,^a Guo-Ping Yang,

^b Yang-Tian Yan,^a Xiao-Lei Su,^a Xin-Hai He,^a Yan-Yan Song,^a Zheng-Sheng Ma^b and Yao-Yu Wang

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* Corresponding authors

^a School of Materials Science & Engineering, Xi'an Polytechnic University, Xi'an 710048, P. R. China
E-mail: 20180717@xpu.edu.cn

^b Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, and, School of Chemical Engineering, Northwest University, Xi'an 710127, P. R. China

Abstract

Herein, we report a new 3D porous Co(II)-based metal–organic framework catalyst (Me₂NH₂)₂[Co₃(L)₂(H₂O)₂]·2DMF (MOF I), which has been successfully prepared by using Co(II) ions and rigid V-shaped 3,5-di(2,4-dicarboxylphenyl)pyridine (H₄L) via the solvothermal reaction. Structural analysis reveals that I displays a porous structure with the pore size of 16.2 × 7.2 Å² based on the trinuclear [Co₃(COO)₄(H₂O)₂N₂] secondary building units (SBUs). Gas sorption experiments on the guest free sample I′ reveals a high capacity and selectivity to CO₂ over CH₄. And further, the catalytic explorations of the I′-catalyzed system (I′: 3 mol%; proline: 40 mol%; CH₃CN: 2 mL) reveal that benzyl alcohols with different structures can be efficiently transformed into benzyl alcohols without by-products under mild conditions.

This article is part of the themed collection: Coordination Networks

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Article information

DOI: https://doi.org/10.1039/D1CE00250C
Article type: Paper
Submitted: 20 Feb 2021
Accepted: 04 Apr 2021
First published: 05 Apr 2021

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CrystEngComm, 2021,23, 3717-3723

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A new porous Co(II)-metal–organic framework for high sorption selectivity and affinity to CO₂ and efficient catalytic oxidation of benzyl alcohols to benzaldehydes

Y. Wu, R. Yang, G. Yang, Y. Yan, X. Su, X. He, Y. Song, Z. Ma and Y. Wang, CrystEngComm, 2021, 23, 3717 DOI: 10.1039/D1CE00250C

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