Correction to: Nature Reviews Chemistry https://doi.org/10.1038/s41570-023-00565-z, published online 10 January 2024.

In the version of the article initially published, there were errors in Fig. 5. In Fig 5a where “LMPO–Cu(I)” and “RH, O2” on the left-hand side originally appeared as “LMPO–Cu(II)” and “H2, O2”. In Fig. 5b, in path b, “Fe(III)” originally appeared as “Fe(II)” and the bond between “O” and “Fe(III)” was originally shown as a solid line. The figure has been corrected in the HTML and PDF versions of the article.