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Updated: Jan 20, 2026

Gold Nanoparticle Synthesis
Published on: July 10, 2021
NHC-Coordinated Diphosphene-Stabilized Gold(I) Hydride and Its Reversible Conversion to Gold(I) Formate with CO2
Debabrata Dhara1, Shubhajit Das2,3, Swapan K Pati2
1Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-, 500107, Telangana, India.
Abstract:
An NHC-coordinated diphosphene is employed as ligand for the synthesis of a hydrocarbon-soluble monomeric AuI hydride, which readily adds CO2 at room temperature yielding the corresponding AuI 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 AuI formate is alternatively formed by dehydrogenative coupling of the AuI hydride with formic acid (HCO2 H), thus in total establishing a reaction sequence for the AuI hydride mediated dehydrogenation of HCO2 H as chemical hydrogen storage material.
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