κ3‐(N^C^C)Gold(III) Carboxylates: Evidence for Decarbonylation Processes

• Published in: Angewandte Chemie International Edition Vol. 58; no. 27; pp. 9064 - 9067
• Main Authors: Beucher, Hélène, Merino, Estíbaliz, Genoux, Alexandre, Fox, Thomas, Nevado, Cristina
• Format: Journal Article
• Language: English
• Published: WEINHEIM Wiley 01.07.2019; Wiley Subscription Services, Inc
• Edition: International ed. in English
• Subjects: Ammonium; Ammonium hydroxide; Carbon dioxide; Carboxylates; Chemistry; Chemistry, Multidisciplinary; decarbonylation; Decarboxylation; Gold; ligand effects; Physical Sciences; reaction mechanisms; Science & Technology; Species; structure elucidation; Thermal decomposition; X-RAY-STRUCTURE; COMPLEXES; reaction mechanisms; REACTIVITY; RUTHENIUM; decarbonylation; HYDROXYCARBONYL; gold; GAS SHIFT REACTION; AU; CARBONYL; METALLOCARBOXYLATE; HOMOGENEOUS CATALYSIS; structure elucidation; ligand effects
• ISSN: 1433-7851; 1521-3773
• DOI: 10.1002/anie.201903098

Gold(III) carboxylate species, stabilized by a κ3‐(N^C^C) ligand template, are presented herein. A η1‐AuIII‐C(O)‐OH species has been characterized under cryogenic conditions as a result of the nucleophilic attack of an ammonium hydroxide onto a dinuclear μ‐CO2‐κ3‐(N^C^C)AuIII precursor. Thermal decomposition for these species proceeds by an unusual decarbonylation process, in contrast to typical decarboxylation pathways observed in related metallocarboxylic acids. Go for gold: Gold(III) carboxylates, stabilized by a κ3‐(N^C^C) ligand template, are presented. η1‐AuIII‐C(O)‐OH was obtained under cryogenic conditions as a result of the nucleophilic attack of an ammonium hydroxide onto a dinuclear μ‐CO2‐κ3‐(N^C^C)AuIII precursor. The thermal decomposition of these species proceeds by an unusual decarbonylation process.