NHC-Coordinated Diphosphene-Stabilized Gold(I) Hydride and Its Reversible Conversion to Gold(I) Formate with CO₂.

ABSTRACT: An NHC-coordinated diphosphene is employed as ligand for the synthesis of a hydrocarbon-soluble monomeric Au^I hydride, which readily adds CO₂ at room temperature yielding the corresponding Au^I formate. The reversible reaction can be expedited by the addition of NHC, which induces β-hydride shift and the removal of CO₂ from equilibrium through the formation of an NHC-CO₂ adduct. The Au^I formate is alternatively formed by dehydrogenative coupling of the Au^I hydride with formic acid (HCO₂ H), thus in total establishing a reaction sequence for the Au^I hydride mediated dehydrogenation of HCO₂ H as chemical hydrogen storage material.

SUBMITTER: Dhara D 

PROVIDER: S-EPMC6916326 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature