Direct observation of key reaction intermediates on gold clusters

J Am Chem Soc. 2003 Mar 12;125(10):2848-9. doi: 10.1021/ja0293406.

Abstract

Using ultraviolet photoelectron spectroscopy, we provide direct experimental evidence that di-oxygen species are stable on anionic gold dimer and tetramer clusters at room temperature. The stabilization of molecular oxygen is crucial for the high activities of the low-temperature reactions on gold catalysts.