Separation of Phenylethanethiolate-protected Gold-Silver 38-atom Alloy Clusters at Atomic Precision by Reversed-phase High-performance Liquid Chromatography
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 i...
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| Veröffentlicht in: | BUNSEKI KAGAKU 2019/10/05, Vol.68(10), pp.769-776 |
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| creator | HASHIMOTO, Sayaka NIIHORI, Yoshiki NEGISHI, Yuichi |
| description | 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. |
| doi_str_mv | 10.2116/bunsekikagaku.68.769 |
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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.</description><identifier>ISSN: 0525-1931</identifier><identifier>DOI: 10.2116/bunsekikagaku.68.769</identifier><language>eng ; jpn</language><publisher>Tokyo: The Japan Society for Analytical Chemistry</publisher><subject>alloy clusters ; Alloys ; atomic level ; Atomic properties ; Chemical composition ; Chemical properties ; Electronic structure ; electronic structures ; Functional materials ; geometrical structures ; Gold ; Gold base alloys ; heteroatom substitution effects ; High performance liquid chromatography ; high-resolution separation ; Metal clusters ; Nanomaterials ; Nanoparticles ; Organic chemistry ; Silver ; Synthesis</subject><ispartof>BUNSEKI KAGAKU, 2019/10/05, Vol.68(10), pp.769-776</ispartof><rights>2019 The Japan Society for Analytical Chemistry</rights><rights>Copyright Japan Science and Technology Agency 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,27901,27902</link.rule.ids></links><search><creatorcontrib>HASHIMOTO, Sayaka</creatorcontrib><creatorcontrib>NIIHORI, Yoshiki</creatorcontrib><creatorcontrib>NEGISHI, Yuichi</creatorcontrib><title>Separation of Phenylethanethiolate-protected Gold-Silver 38-atom Alloy Clusters at Atomic Precision by Reversed-phase High-performance Liquid Chromatography</title><title>BUNSEKI KAGAKU</title><addtitle>BUNSEKI KAGAKU</addtitle><description>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. 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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. 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| subjects | alloy clusters Alloys atomic level Atomic properties Chemical composition Chemical properties Electronic structure electronic structures Functional materials geometrical structures Gold Gold base alloys heteroatom substitution effects High performance liquid chromatography high-resolution separation Metal clusters Nanomaterials Nanoparticles Organic chemistry Silver Synthesis |
| title | Separation of Phenylethanethiolate-protected Gold-Silver 38-atom Alloy Clusters at Atomic Precision by Reversed-phase High-performance Liquid Chromatography |
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