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. 2022 Jun 11;13:3365. doi: 10.1038/s41467-022-30815-5

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Fig. 7 — Using O₂ in the air as a hydrogen acceptor (path D), acetophenone 6 as a hydrogen acceptor (path D-AP), and via hydrogen-acceptor-free pathway (path D-B) (unit: kcal/mol).