A new binding motif of sterically demanding thiolates on a gold cluster

J Am Chem Soc. 2012 Sep 5;134(35):14295-7. doi: 10.1021/ja305477a. Epub 2012 Aug 22.

Abstract

A gold cluster, Au(41)(S-Eind)(12), was synthesized by ligating the bulky arenethiol 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacene-4-thiol (Eind-SH) to preformed Au clusters. Extended X-ray absorption fine structure, X-ray photoelectron spectroscopy, and the fragmentation pattern in the mass spectrometry analysis indicated that formation of gold-thiolate oligomers at the interface was suppressed, in sharp contrast to conventional thiolate-protected Au clusters.