A New Binding Motif of Sterically Demanding Thiolates on a Gold Cluster

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• 作者：Jun-ichi Nishigaki ; Risako Tsunoyama ; Hironori Tsunoyama ; Nobuyuki Ichikuni ; Seiji Yamazoe ; Yuichi Negishi ; Mikinao Ito ; Tsukasa Matsuo ; Kohei Tamao ; Tatsuya Tsukuda
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：September 5, 2012
• 年：2012
• 卷：134
• 期：35
• 页码：14295-14297
• 全文大小：242K
• 年卷期：v.134,no.35(September 5, 2012)
• ISSN：1520-5126

文摘

A gold cluster, Au₄₁(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鈥搕hiolate oligomers at the interface was suppressed, in sharp contrast to conventional thiolate-protected Au clusters.