A twisted bi-icosahedral Au25 cluster enclosed by bulky arenethiolates

Jun-ichi Nishigaki; Seiji Yamazoe; Shinji Kohara; Akihiko Fujiwara; Wataru Kurashige; Yuichi Negishi; Tatsuya Tsukuda

doi:10.1039/C3CC47154C

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A twisted bi-icosahedral Au₂₅ cluster enclosed by bulky arenethiolates†

Jun-ichi Nishigaki,^a Seiji Yamazoe,^ab Shinji Kohara,^c Akihiko Fujiwara,^c Wataru Kurashige,^d Yuichi Negishi^d and Tatsuya Tsukuda*^ab

Author affiliations

* Corresponding authors

^a Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
E-mail: tsukuda@chem.s.u-tokyo.ac.jp

^b Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan

^c Japan Synchrotron Radiation Research Institute/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan

^d Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan

Abstract

Ligation of 2,6-diphenylbenzenethiol (DppSH) onto Au clusters stabilized by poly(N-vinyl-2-pyrrolidone) and subsequent core etching yielded a single cluster Au₂₅(SDpp)₁₁. High-energy X-ray diffraction measurement showed that Au₂₅ constitutes a core in Au₂₅(SDpp)₁₁. We propose a bi-icosahedral Au₂₅ core whose 22 Au surface atoms are capped directly by 11 bulky arenethiolates.

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Article information

DOI: https://doi.org/10.1039/C3CC47154C
Article type: Communication
Submitted: 18 Sep 2013
Accepted: 22 Oct 2013
First published: 22 Oct 2013

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Chem. Commun., 2014,50, 839-841

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A twisted bi-icosahedral Au₂₅ cluster enclosed by bulky arenethiolates

J. Nishigaki, S. Yamazoe, S. Kohara, A. Fujiwara, W. Kurashige, Y. Negishi and T. Tsukuda, Chem. Commun., 2014, 50, 839 DOI: 10.1039/C3CC47154C

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Chemical Communications