Answers are grounded in this paper and cite their sources.
An excess amount of silver salt to generate cationic gold from a gold catalyst precursor such as L-Au-Cl almost always has adverse effects on the reactivity of the cationic gold catalyst. A preformed L-Au(+)X(-) complex, generated by sonication followed by centrifugation, increases the reactivity in a gold catalyzed reaction. The adverse silver effect might be caused by the interaction of silver salts with gold intermediates.
No takes yet. Share an insight, caveat, or question.
Lu et al. (2015) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: