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. Author manuscript; available in PMC: 2020 May 26.
Published in final edited form as: ACS Catal. 2020 Mar 3;10(7):4337–4348. doi: 10.1021/acscatal.9b05455

Figure 14.

Figure 14

a. The supernatant of a reaction mixture of (dppp)Co(II)Br2, Zn, and ZnBr2 was stirred for two hours after which, the following was added: Methyl acrylate in DCE (0.11 mmoles, 0.22 M, 58 eq with respect to cobalt species) added to [(dppp)Co(I)]+ (0.0038 mmole, 1.9 mM). Spectra were taken for 3 min with 1 min interval.

Figure 14b. The supernatant of a reaction mixture of (dppp)Co(II)Br2, Zn, and ZnBr2 was stirred for two hours after which, the following was added:. 2,3-dimethyl-1,3-butadiene in DCE added (0.044 mmoles, 0.044 M, 11.63 eq with respect to cobalt species) added to [(dppp)Co(I)]+ (0.0038 mmole, 19 mM). Spectra taken for 5 min with 1 min interval.

Figure 14c. The supernatant of a reaction mixture of (dppp)Co(II)Br2, Zn, and ZnBr2 was stirred for two hours after which, the following was carried out: methyl acrylate in DCE (0.11 mmoles, 0.22 M, 58 eq with respect to cobalt species) was added to [(dppp)Co(I)] + (0.0038 mmole, 1.9 mM). Readings were taken for 4 minutes. Then 2,3-dimethyl-1,3-butadiene in DCE added (0.044 mmoles, 0.044 M, 11.63 eq with respect to cobalt species) was added to [(dppp)Co(I)]+ (0.0038 mmole, 19 mM), readings were taken for another 5 minutes.