A Cavity-Shaped Gold(I) Fragment Enables CO2 Insertion into Au-OH and Au-NH Bonds

Miquel Navarro; Markus Holzapfel; Jesús Campos

doi:10.1021/acs.inorgchem.3c00751

A Cavity-Shaped Gold(I) Fragment Enables CO₂ Insertion into Au-OH and Au-NH Bonds

Inorg Chem. 2023 Jul 10;62(27):10582-10591. doi: 10.1021/acs.inorgchem.3c00751. Epub 2023 Jun 27.

Authors

Miquel Navarro¹, Markus Holzapfel¹, Jesús Campos¹

Affiliation

¹ Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain.

Abstract

A cavity-shaped linear gold(I) hydroxide complex acts as a platform to access unusual gold monomeric species. Notably, this sterically crowded gold fragment enables the trapping of CO₂ via insertion into Au-OH and Au-NH bonds to form unprecedented monomeric gold(I) carbonate and carbamate complexes. In addition, we succeeded in the identification of the first gold(I) terminal hydride bearing a phosphine ligand. The basic nature of the Au(I)-hydroxide moiety is also explored through the reactivity toward other molecules containing acidic protons such as trifluoromethanesulfonic acid and terminal alkynes.