title: Understanding and Practical Use of Ligand and Metal Exchange Reactions in Thiolate-Protected Metal Clusters to Synthesize Controlled Metal Clusters.
abstract: It is now possible to accurately synthesize thiolate (SR)-protected gold clusters (Aun(SR)m) with various chemical compositions with atomic precision. The geometric structure, electronic structure, physical properties, and functions of these clusters are well known. In contrast, the ligand or metal atom exchange reactions between these clusters and other substances have not been studied extensively until recently, even though these phenomena were observed during early studies. Understanding the mechanisms of these reactions could allow desired functional metal clusters to be produced via exchange reactions. Therefore, we have studied the exchange reactions between Aun(SR)mand analogous clusters and other substances for the past four years. The results have enabled us to gain deep understanding of ligand exchange with respect to preferential exchange sites, acceleration means, effect on electronic structure, and intercluster exchange. We have also synthesized several new metal clusters using ligand and metal exchange reactions. In this account, we summarize our research on ligand and metal exchange reactions.
authors.affiliation: Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Niihori
authors.affiliation: Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.
authors.forename: Sakiat
authors.initials: S
authors.lastname: Hossain
authors.affiliation: Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
authors.forename: Sachil
authors.initials: S
authors.lastname: Sharma
authors.affiliation: Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
authors.forename: Bharat
authors.initials: B
authors.lastname: Kumar
authors.affiliation: Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
authors.forename: Wataru
authors.initials: W
authors.lastname: Kurashige
authors.affiliation: Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.|Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Negishi
keywords: alloys; clusters compounds; exchange interactions; metal-metal interactions; reaction mechanism