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. Author manuscript; available in PMC: 2020 Nov 30.
Published in final edited form as: Chem Rev. 2020 Mar 16;120(12):5082–5106. doi: 10.1021/acs.chemrev.9b00556

Figure 3.

Figure 3.

Simplified 8[e/H+] kinetic scheme for nitrogen reduction. In the Lowe–Thorneley En notation, n = number of [e/H+] added to FeMo-co; in parentheses, the stoichiometry of H/N bound to FeMo-co. The re/oa equilibrium is highlighted in red, and the intermediates in red boxes have been freeze trapped for spectroscopic study.