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. Author manuscript; available in PMC: 2017 Aug 10.
Published in final edited form as: Chem Rev. 2016 Jun 29;116(15):8693–8749. doi: 10.1021/acs.chemrev.6b00180

Figure 48.

Figure 48

H/D scrambling implies a Ni(η2-H2) intermediate (top).370 Such Ni(η2-H2) species can exhibit heterolysis with371 and without an external base372 (middle and bottom, respectively).