Silver migration between Au38(SC2H4Ph)24 and doped AgxAu38−x(SC2H4Ph)24 nanoclusters

Zhang, Bei; Salassa, Giovanni; Bürgi, Thomas

doi:10.1039/c6cc04469g

Cited by 59 publications

(63 citation statements)

References 23 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The metal exchange reaction also enables synthesis of alloy clusters composed of metal elements with very different redox potentials, and can replace a larger number of heteroatoms than when using the simultaneous reduction method . Using this type of exchange reaction, alloy clusters such as Au 25− x Ag x (SR) 18 ( x =1–8), Au 25− x Cu x (SR) 18 ( x =1–9), Au 24 Cd(SR) 18 , Au 24 Hg(SR) 18 ,− Au 24− x Ag x Cd(SR) 18 ( x =2–6), Au 24− x Ag x Hg(SR) 18 ( x =1–8), Ag 25− x Au x (SR) 18 ( x =1,2), Ag 24− x Au x Pt(SR) 18 ( x =1, 2, 4–9), and Au 38− x Ag x (SR) 24 ( x =1–11) have been synthesized to date.…”

Section: Metal Exchange With Metal Complexmentioning

confidence: 99%

See 1 more Smart Citation

Understanding and Practical Use of Ligand and Metal Exchange Reactions in Thiolate-Protected Metal Clusters to Synthesize Controlled Metal Clusters

et al. 2017

View full text Add to dashboard Cite

It is now possible to accurately synthesize thiolate (SR)-protected gold clusters (Au (SR) ) 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 Au (SR) and 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.

show abstract

Section: Metal Exchange With Metal Complexmentioning

confidence: 99%

“…Furthermore, it is important to examine the manner of heteroelement introduction in greater depth. According to the recent reports by Pradeep group, Wu group, and Bürgi group, metal atoms are also exchanged between clusters. Therefore, it is possible to generate alloy clusters through metal exchange between clusters.…”

Section: Summary and Prospectsmentioning

confidence: 99%

Understanding and Practical Use of Ligand and Metal Exchange Reactions in Thiolate-Protected Metal Clusters to Synthesize Controlled Metal Clusters

et al. 2017

View full text Add to dashboard Cite

show abstract

“…6(b)). 39 This metal exchange occurs instantaneously in solution. 39 18 ] 2 consisting of both clusters forms within 2 min, and then the exchange of metallic elements begins between the two clusters.…”

Section: Metal Exchangementioning

confidence: 99%

“…39 This metal exchange occurs instantaneously in solution. 39 18 ] 2 consisting of both clusters forms within 2 min, and then the exchange of metallic elements begins between the two clusters. 40 An interesting feature of these metal exchange reactions is that both the number of constituent atoms and ligands are maintained when some metal atoms are replaced by others.…”

Section: Metal Exchangementioning

confidence: 99%

See 1 more Smart Citation

Perspective: Exchange reactions in thiolate-protected metal clusters

et al. 2017

View full text Add to dashboard Cite

Thiolate-protected metal clusters can exchange ligands or metal atoms with other substances such as coexisting ligands, complexes, and metal clusters in solution. Using these reactions, it is possible to synthesize metal clusters with new physical and chemical properties. Although the occurrence of such reactions was recognized nearly 20 years ago, their details were not well understood. In recent years, techniques for the precise synthesis of metal clusters and their characterization have progressed considerably and, as a result, details of these reactions have been clarified. In this perspective, we focus on the most-studied thiolate-protected gold clusters and provide a summary of recent findings as well as future expectations concerning the exchange reactions of these clusters.

show abstract

Engineering Functional Metal Materials at the Atomic Level

et al. 2018

View full text Add to dashboard Cite

With continuous research efforts devoted into synthesis and characterization chemistry of functional nanomaterials in the past decades, the development of metal materials is stepping into a new era, where atom-by-atom customization of property-dictating structural attributes is expected. Herein, the state-of-the-art modulation of functional metal nanomaterials at the atomic level, by size- and structure-controlled synthesis of thiolate-protected metal (e.g., Au and Ag) nanoclusters (NCs), is exemplified. Metal NCs are ultrasmall (<3 nm) particles with hierarchical primary, secondary, and tertiary structures, reminiscent of natural proteins or enzymes. Given the proven dependence of their physicochemical properties on their size and structure, documented synthetic methodologies delivering NCs with atomic-level monodispersity and tailorable size and structural attributes at individual hierarchical levels are categorized and discussed. Such assured atomic-level modulation could confer metal NCs with novel application opportunities in diverse fields, which are also exemplified by their size- and structure-dictated catalytic and biomedical performance. The precise synthesis and application chemistry developed based on the hierarchical structure scheme of metal NCs could increase the acceptance of metal NCs as a new family of functional materials.

show abstract

Silver migration between Au₃₈(SC₂H₄Ph)₂₄ and doped Ag_xAu_38−x(SC₂H₄Ph)₂₄ nanoclusters

Cited by 59 publications

References 23 publications

Understanding and Practical Use of Ligand and Metal Exchange Reactions in Thiolate-Protected Metal Clusters to Synthesize Controlled Metal Clusters

Understanding and Practical Use of Ligand and Metal Exchange Reactions in Thiolate-Protected Metal Clusters to Synthesize Controlled Metal Clusters

Perspective: Exchange reactions in thiolate-protected metal clusters

Engineering Functional Metal Materials at the Atomic Level

Contact Info

Product

Resources

About