Separation of Phenylethanethiolate-protected Gold-Silver 38-atom Alloy Clusters at Atomic Precision by Reversed-phase High-performance Liquid Chromatography

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  • HASHIMOTO Sayaka
    Department of Applied Chemistry, Faculty of Science, Tokyo University of Science
  • NIIHORI Yoshiki
    Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Present address: Department of Chemistry, College of Science, Rikkyo University
  • NEGISHI Yuichi
    Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Photocatalysis International Research Center, Tokyo University of Science

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Other Title
  • 逆相高速液体クロマトグラフィーによるフェニルエタンチオラート保護金銀38原子合金クラスターの原子精度での精密分離
  • 若手初論文 逆相高速液体クロマトグラフィーによるフェニルエタンチオラート保護金銀38原子合金クラスターの原子精度での精密分離
  • ワカテ ハツ ロンブン ギャクソウ コウソク エキタイ クロマトグラフィー ニ ヨル フェニルエタンチオラート ホゴ キンギン 38 ゲンシ ゴウキン クラスター ノ ゲンシ セイド デ ノ セイミツ ブンリ

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Abstract

<p>Metal alloys exhibit functionalities unlike those of single metals. Such alloying has drawn considerable research interest, particularly for nanoscale particles (metal clusters/nanoparticles), from the viewpoint of creating new functional nanomaterials. Although studying the precise alloy clusters is indispensable to understand the correlation between the structures and physical/chemical properties of alloy clusters, there are still many alloy clusters that cannot be synthesized with atomic precision, as represented by gold-silver alloy clusters. In this study, we established a method to separate phenylethanethiolate-protected 38-atom gold–silver alloy clusters ([Au38−xAgx(SC2H4Ph)24]0) according to their chemical composition. This method revealed how the electronic structure of [Au38−xAgx(SC2H4Ph)24]0 varies depending on the number of the substituted Ag atoms at atomic precision. This study also revealed that the geometrical and electronic structures of the synthesized [Au38−xAgx(SC2H4Ph)24]0 are influenced by the synthesis method.</p>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 68 (10), 769-776, 2019-10-05

    The Japan Society for Analytical Chemistry

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