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This value is not the average of the O\u2013H\nbonds since it also includes the O\u2013O double bond cleavage.\nThis value reflects the BDFE required for an H-atom donor to give\nisoergic conversion of O2 to H2O. The same thermochemical\nanalysis can be done for combinations of acid\/reductant and oxidant\/base.\nThe combination of ferrocenium and pyridine could break X\u2013H\nbonds homolytically as strong as 81.6 kcal\/mol in DMF in an isoergic\nfashion (see SI for further details)."},{"key":"ref23\/cit23","doi-asserted-by":"publisher","DOI":"10.1002\/poc.610080803"},{"key":"ref24\/cit24","unstructured":"We\nestimate that the\nBDFEX\u2013H values are similar in DMF and DMSO. 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