Cluster of clusters: a modular approach to large metal clusters. Structural characterization of a 38-atom cluster [(p-Tol3P)12Au18Ag20Cl14] based on vertex-sharing triicosahedra

Teo, Boon K.; Zhang, Hong; Shi, Xiaobo

doi:10.1021/ja00179a046

Cited by 111 publications

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“…Teo et al. reported the ( p ‐Tol 3 P) 12 Au 18 Ag 20 Cl 14 cluster with three 13‐atom cluster units sharing three Au vertices, and this cluster was named a cluster of clusters 39. Thereafter, the research groups of Tsukuda28 and Jin29 reported the structure and the optical properties of the rod‐like 25‐atom cluster, which is constructed by bridging two icosahedral Au 13 clusters with thiolates sharing a vertex atom.…”

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confidence: 99%

The Magic Au₆₀ Nanocluster: A New Cluster‐Assembled Material with Five Au₁₃ Building Blocks

et al. 2015

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Herein, we report the synthesis and atomic structure of the cluster-assembled [Au60Se2(Ph3P)10(SeR)15](+) material. Five icosahedral Au13 building blocks from a closed gold ring with Au-Se-Au linkages. Interestingly, two Se atoms (without the phenyl tail) locate in the center of the cluster, stabilized by the Se-(Au)5 interactions. The ring-like nanocluster is unprecedented in previous experimental and theoretical studies of gold nanocluster structures. In addition, our optical and electrochemical studies show that the electronic properties of the icosahedral Au13 units still remain unchanged in the penta-twinned Au60 nanocluster, and this new material might be a promising in optical limiting material. This work offers a basis for deep understanding on controlling the cluster-assembled materials for tailoring their functionalities.

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confidence: 99%

The Magic Au₆₀ Nanocluster: A New Cluster‐Assembled Material with Five Au₁₃ Building Blocks

et al. 2015

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“…Indeed, this modular or building block approach is a highly promising route to clusters of increasing nuclearity. Recently we reported the syntheses and structures of a new series of high-nuclearity Au-Ag clusters containing 25 (9), 37 (10), 38 (11), and 46 (B.K.T., X. Shi, and H.Z., unpublished data) metal atoms. The metal configuration of these "supraclusters" can be visualized on the basis of vertex-sharing 13-atom Au-centered icosahedra as building blocks (13)(14)(15)(16)(17)(18) (Fig.…”

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confidence: 99%

Clusters of clusters: self-organization and self-similarity in the intermediate stages of cluster growth of Au-Ag supraclusters.

Teo

Zhang

1991

Proc. Natl. Acad. Sci. U.S.A.

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A systematic structural investigation of a new series of high-nuclearity Au-Ag clusters containing 25, 37, 38, and 46 metal atoms led to the description of these clusters as "clusters of clusters" based on vertex-sharing icosahedra as building blocks. Based on the observed structures, a growth sequence is proposed here for the formation of these secondary clusters (clusters of clusters) from a single 13-atom icosahedron to a 127-atom icosahedron of icosahedra via successive additions of vertex-sharing icosahedral units. This cluster-ofclusters growth mechanism parallels the atom-by-atom growth pathway for the primary clusters from a single atom to a 13-atom icosahedron. It is hypothesized that the formation of these clusters of clusters is a manifestation of the spontaneous self-organization and self-similarity processes often observed in nature. It is conceivable that the concept of cluster of clusters may be important in the intermediate stages of some cluster growth as exemplified by the polyicosahedral growth of Au-Ag supraclusters.High-nuclearity clusters are often formed by fusing together smaller cluster units (1-8). Indeed, this modular or building block approach is a highly promising route to clusters of increasing nuclearity. Recently we reported the syntheses and structures of a new series of high-nuclearity Au-Ag clusters containing 25 (9), 37 (10), 38 (11), and 46 (B.K.T., X. Shi, and H.Z., unpublished data) metal atoms. The metal configuration of these "supraclusters" can be visualized on the basis of vertex-sharing 13-atom Au-centered icosahedra as building blocks (13-18) (Fig. 1). We refer to these supraclusters as "clusters of clusters" (13-18) (Fig. 2). We also developed atom-and electron-counting schemes for rationalizing or predicting the structure and bonding of these and related supraclusters (15-18) (see Appendix 1).

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“…The coordination numbers of O atoms around the Ru atom and that of Pt atoms around the Pt atom have been determined as 2.4 ± 0.4 (corresponding Ru-O bond distance: 2.08 ± 0.03 Å), 2.7 ± 0.4 (corresponding Ru-O bond distance: 2.27 ± 0.03 Å), and 8.4 ± 1.4 (Pt-Pt contribution), respectively. The absence of an Ru-Ru contribution indicates that Ru atoms are completely oxidized, probably resulting in the form of the hydrated ion [Ru(H 2 O) 5 Cl] 2+ or [Ru(H 2 O) 4 Cl 2 ] + in colloidal dispersions [56], without any contact with ambient air.…”

Section: Structure Of Pt/ru Colloidal Dispersions Determined By Exafsmentioning

confidence: 99%

“…The two main structures are often described in the literature. One is a vertex-sharing icosahedral structure, which builds upon each unit, forming highly symmetric superclusters [5,6]. The other is a cubic close-packed (ccp) or hexagonal close-packed (hcp) structure with the outer geometry of a cuboctahedron [7,8].…”

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confidence: 99%

Aggregated structure analysis of polymer-protected platinum/ruthenium colloidal dispersions using EXAFS, HRTEM, and electron diffraction measurements

Harada

Toshima

Yoshida

et al. 2005

Journal of Colloid and Interface Science

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Cluster of clusters: a modular approach to large metal clusters. Structural characterization of a 38-atom cluster [(p-Tol3P)12Au18Ag20Cl14] based on vertex-sharing triicosahedra

Cited by 111 publications

References 0 publications

The Magic Au₆₀ Nanocluster: A New Cluster‐Assembled Material with Five Au₁₃ Building Blocks

The Magic Au₆₀ Nanocluster: A New Cluster‐Assembled Material with Five Au₁₃ Building Blocks

Clusters of clusters: self-organization and self-similarity in the intermediate stages of cluster growth of Au-Ag supraclusters.

Aggregated structure analysis of polymer-protected platinum/ruthenium colloidal dispersions using EXAFS, HRTEM, and electron diffraction measurements

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Cluster of clusters: a modular approach to large metal clusters. Structural characterization of a 38-atom cluster [(p-Tol3P)12Au18Ag20Cl14] based on vertex-sharing triicosahedra

Cited by 111 publications

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The Magic Au60 Nanocluster: A New Cluster‐Assembled Material with Five Au13 Building Blocks

The Magic Au60 Nanocluster: A New Cluster‐Assembled Material with Five Au13 Building Blocks

Clusters of clusters: self-organization and self-similarity in the intermediate stages of cluster growth of Au-Ag supraclusters.

Aggregated structure analysis of polymer-protected platinum/ruthenium colloidal dispersions using EXAFS, HRTEM, and electron diffraction measurements

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The Magic Au₆₀ Nanocluster: A New Cluster‐Assembled Material with Five Au₁₃ Building Blocks

The Magic Au₆₀ Nanocluster: A New Cluster‐Assembled Material with Five Au₁₃ Building Blocks