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

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Abstract

Sodium reduction of [{SiNDipp}Mg] [{SiNDipp} = {CH2SiMe2N(Dipp)}2; Dipp = 2,6-i-Pr2C6H3] provides the Mg(I) species, [{SiN-Dipp}MgNa]2, in which the long Mg-Mg bond (>3.2 Å) is augmented by persistent Na-aryl interactions. Computational assess-ment 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.
Original languageEnglish
Pages (from-to)17851-17856
Number of pages6
JournalJournal of the American Chemical Society
Volume143
Issue number42
Early online date15 Oct 2021
DOIs
Publication statusPublished - 27 Oct 2021

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