Activation of multiple C-H bonds promoted by gold in AuNbO(3)(+) clusters

Angew Chem Int Ed Engl. 2013 Feb 25;52(9):2444-8. doi: 10.1002/anie.201207016. Epub 2013 Jan 25.

Abstract

Single, double, triple: Highly selective double H atom abstraction (HAA) from ethane and triple HAA from n-butane by AuNbO(3)(+) clusters have been characterized by mass spectrometry and DFT calculations. The multiple HAAs are initiated by oxygen-centered radicals and promoted by gold. The gold atoms act as electron acceptors during the triple HAAs and help to store a pair of valence electrons between Au and Nb atoms.