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. 2011 May 5;108(21):8559–8564. doi: 10.1073/pnas.1104952108

Fig. 1.

Fig. 1.

Association between electron transfer and bond cleavage or formation involving either heavy atom or proton transfer (as shown between parentheses in the latter case). e- represents an electron exchange with an electrode in the case of an electrochemical process or a molecular electron donor/acceptor for homogeneous reactions.