Reversible dioxygen uptake at [Cu4] clusters
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Dioxygen binding solely through non-covalent interactions is rare. In living systems, dioxygen transport takes place via iron or copper-containing biological cofactors. Specifically, a reversible covalent interaction is established when O2 binds to the mono or polynuclear metal center. However, O2 stabilization in the absence of covalent bond formation is challenging and rarely observed. Here, we demonstrate a unique example of reversible non-covalent binding of dioxygen within the cavity of a well-defined synthetic all-Cu(I) tetracopper cluster.
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Kusi Osei, M., Mirzaei, S., Saeed Mirzaei, M., Valles, A., & Sánchez, R. H. (2024). Reversible dioxygen uptake at [Cu 4 ] clusters. Chemical Science, 15(14), 5327–5332. https://doi.org/10.1039/D3SC06390A