Issue 18, 2024

A mixed-valence CuI/CuII metal–organic framework for CO2 conversion

Abstract

The development of noble-metal-free and efficient metal–organic frameworks (MOFs) as heterogeneous catalysts for carbon dioxide (CO2) conversion is of particular interest, but remains challenging. In this study, a CuI/CuII mixed-valence MOF (1) was synthesized, consisting of copper(I) cyclic trinuclear units (CuI-CTUs) and CuII-paddlewheel units. The MOF featured a (3,4,4)-c network topology, which is rarely reported in the literature. Interestingly, 1 demonstrated efficient catalytic activity in the cyclization reaction of epoxides or propargyl amines with CO2 with excellent yields (i.e., 81% to 99% for 12 examples). Additionally, it showed high reusability, maintaining the catalytic performance for at least five cycles without a loss in efficiency. Of significant note, MOF 1 delivered high catalytic activity with a turnover frequency of 142.8 h−1 (23.8 h−1 based on Cu) for the synthesis of oxazolidinones at ambient temperature, showcasing its potential as an effective catalyst for CO2 conversion reactions.

Graphical abstract: A mixed-valence CuI/CuII metal–organic framework for CO2 conversion

Supplementary files

Article information

Article type
Research Article
Submitted
11 jun 2024
Accepted
25 jul 2024
First published
26 jul 2024

Inorg. Chem. Front., 2024,11, 6072-6078

A mixed-valence CuI/CuII metal–organic framework for CO2 conversion

Y. Wang, K. Mo, D. Luo, M. Tao, X. Chen, G. Ning and D. Li, Inorg. Chem. Front., 2024, 11, 6072 DOI: 10.1039/D4QI01463D

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