From metallic gold to [Au(NHC)₂]⁺ complexes: an easy, one-pot method

Area of Science:

• Organometallic Chemistry
• Coordination Chemistry

Background:

• Gold(I) complexes with N-heterocyclic carbene (NHC) ligands are of significant interest due to their diverse applications.
• Existing synthetic routes can be complex or require expensive starting materials.

Purpose of the Study:

• To present a simple and direct method for synthesizing cationic bis(NHC)-Au(I) complexes.
• To utilize metallic gold as a readily available starting material.

Main Methods:

• Direct reaction of metallic gold with N-alkyl or N-aryl NHC ligands.
• Formation of cationic bis(NHC)-Au(I) complexes.

Main Results:

• Successful preparation of cationic bis(NHC)-Au(I) complexes.
• Demonstration of a direct synthetic route from metallic gold.
• Versatility in using different N-alkyl and N-aryl NHC ligands.

Conclusions:

• The described method offers a simple, direct, and efficient approach to cationic gold complexes.
• This method provides access to valuable gold compounds using metallic gold as the precursor.
• The synthesized complexes are relevant for various potential applications in catalysis and materials science.