Sodium reduction of [{SiNDipp}Mg] [{SiNDipp} = {CH2SiMe2N(Dipp)}2; Dipp = 2,6-i-Pr2C6H3] provides the Mg(I) species, [{SiNDipp}MgNa]2, in which the long Mg-Mg bond (>3.2 Å) is augmented by persistent Na-aryl interactions. Computational assessment indicates that this molecule is best considered to comprise a contiguous tetrametallic core, a viewpoint borne out by its reaction with CO, which results in ethynediolate formation mediated by the dissimilar metal centers.
CITATION STYLE
Liu, H. Y., Schwamm, R. J., Neale, S. E., Hill, M. S., McMullin, C. L., & Mahon, M. F. (2021). Reductive Dimerization of CO by a Na/Mg(I) Diamide. Journal of the American Chemical Society, 143(42), 17851–17856. https://doi.org/10.1021/jacs.1c09467
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