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Reductive Dimerization of CO by a Na/Mg(I) Diamide.

ABSTRACT: 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.

SUBMITTER: Liu HY 

PROVIDER: S-EPMC8554760 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Reductive Dimerization of CO by a Na/Mg(I) Diamide.

Liu Han-Ying HY   Schwamm Ryan J RJ   Neale Samuel E SE   Hill Michael S MS   McMullin Claire L CL   Mahon Mary F MF  

Journal of the American Chemical Society 20211015 42

Sodium reduction of [{SiN<sup>Dipp</sup>}Mg] [{SiN<sup>Dipp</sup>} = {CH<sub>2</sub>SiMe<sub>2</sub>N(Dipp)}<sub>2</sub>; Dipp = 2,6-<i>i-</i>Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>] provides the Mg(I) species, [{SiN<sup>Dipp</sup>}MgNa]<sub>2</sub>, 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  ...[more]

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