Experimental and Theoretical Characterization of Aluminum-Based Binary Superatoms of Al<sub>12</sub>X and Their Cluster Salts

Akutsu, Minoru; Koyasu, Kiichirou; Atobe, Junko; Hosoya, Natsuki; Miyajima, Ken; Mitsui, Masaaki; Nakajima, Atsushi

doi:10.1021/jp065161p

Cited by 96 publications

(122 citation statements)

References 35 publications

(40 reference statements)

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“…Gas-phase research has revealed that the doping of a metal core with heteroatoms could affect the stability and physical and chemical properties of the metal clusters. 76 The catalytic activity of polymerstabilized metal clusters is also altered by heteroatom doping (alloying). 18 with a single Pd atom.…”

Section: Determining Heteroatom Doping Effectsmentioning

confidence: 99%

Toward the Creation of Functionalized Metal Nanoclusters and Highly Active Photocatalytic Materials Using Thiolate-Protected Magic Gold Clusters

Negishi

2013

Bulletin of the Chemical Society of Japan

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Advances in developments in nanotechnology have encouraged the creation of highly functionalized nanomaterials. Thiolate-protected gold clusters (Au n (SR) m ) less than 2 nm in size exhibit size-specific physical and chemical properties not observed in bulk metals. Therefore, they have attracted attention as functional units or building blocks in nanotechnology. The highly stable, magic Au n (SR) m clusters possess great potential as new nanomaterials. We are studying the following subjects related to magic Au n (SR) m clusters: (1) establishing methods to enhance their functionality, (2) developing high-resolution separation methods, and (3) utilizing the clusters as active sites in photocatalytic materials. Through these studies, we aim to create highly functional metal nanoclusters and apply them as highly active photocatalytic materials. The results of our efforts to date are summarized in this paper.

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Section: Determining Heteroatom Doping Effectsmentioning

confidence: 99%

Toward the Creation of Functionalized Metal Nanoclusters and Highly Active Photocatalytic Materials Using Thiolate-Protected Magic Gold Clusters

Negishi

2013

Bulletin of the Chemical Society of Japan

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“…The PES pattern of Al 12 C − was found to be distinctly different, confirming that it does not possess an I h structure. A recent PES and photoionization spectroscopic study by Akutsu et al 21 suggested that Al 12 B − , Al 12 P, and Al 12 P + also have the I h -X@Al 12 structures.…”

Section: Introductionmentioning

confidence: 99%

Probing the electronic and structural properties of doped aluminum clusters: MAl12− (M=Li, Cu, and Au)

Pal

Cui

Bulusu

et al. 2008

The Journal of Chemical Physics

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Photoelectron spectroscopy ͑PES͒ is combined with theoretical calculations to investigate the electronic and atomic structures of three doped aluminum clusters, MAl 12 − ͑M = Li, Cu, and Au͒. Well-resolved PES spectra have been obtained at two detachment photon energies, 266 nm ͑4.661 eV͒ and 193 nm ͑6.424 eV͒. Basin-hopping global optimization method in combination with density-functional theory calculations has been used for the structural searches. Good agreement between the measured PES spectra and theoretical simulations helps to identify the global minimum structures. It is found that LiAl 12 − ͑C 5v ͒ can be viewed as replacing a surface Al atom by Li on an icosahedral Al 13 − , whereas Cu prefers the central site to form the encapsulated D 3d -Cu@ Al 12 − . For AuAl 12 − ͑C 1 ͒, Au also prefers the central site, but severely distorts the Al 12 cage due to its large size.

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“…Numerous gas-phase clusters 48 and metal nanoparticles [49][50][51] have been reported where heteroatom doping has led to changes in the physical and chemical properties of the clusters. This is also expected for magic Au n (SR) m clusters.…”

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confidence: 99%

Recent Progress in the Functionalization Methods of Thiolate-Protected Gold Clusters

Kurashige

Niihori

Sharma

et al. 2014

J. Phys. Chem. Lett.

108

125

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Nanomaterials that exhibit both stability and functionality are currently considered to hold great promise as components of nanotechnology devices. Thiolate-protected gold clusters (Aun(SR)m) have long attracted attention as functional nanomaterials. Magic Aun(SR)m clusters are an especially stable group of thiolate-protected clusters that have particularly high potential as functional materials. Although numerous application experiments have been conducted for magic Aun(SR)m clusters, it is important that functionalization methods are also established to allow for effective utilization of these materials. The results of recent research on heteroatom doping and the use of other chalcogenide ligands strongly suggest that these strategies are promising as functionalization methods of magic Aun(SR)m clusters. In this Perspective, we focus on studies relating to three representative types of magic clusters-Au25(SR)18, Au38(SR)24, and Au144(SR)60-and discuss the recent progress and future issues.

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Experimental and Theoretical Characterization of Aluminum-Based Binary Superatoms of Al₁₂X and Their Cluster Salts

Cited by 96 publications

References 35 publications

Toward the Creation of Functionalized Metal Nanoclusters and Highly Active Photocatalytic Materials Using Thiolate-Protected Magic Gold Clusters

Toward the Creation of Functionalized Metal Nanoclusters and Highly Active Photocatalytic Materials Using Thiolate-Protected Magic Gold Clusters

Probing the electronic and structural properties of doped aluminum clusters: MAl12− (M=Li, Cu, and Au)

Recent Progress in the Functionalization Methods of Thiolate-Protected Gold Clusters

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Experimental and Theoretical Characterization of Aluminum-Based Binary Superatoms of Al12X and Their Cluster Salts

Cited by 96 publications

References 35 publications

Toward the Creation of Functionalized Metal Nanoclusters and Highly Active Photocatalytic Materials Using Thiolate-Protected Magic Gold Clusters

Toward the Creation of Functionalized Metal Nanoclusters and Highly Active Photocatalytic Materials Using Thiolate-Protected Magic Gold Clusters

Probing the electronic and structural properties of doped aluminum clusters: MAl12− (M=Li, Cu, and Au)

Recent Progress in the Functionalization Methods of Thiolate-Protected Gold Clusters

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Experimental and Theoretical Characterization of Aluminum-Based Binary Superatoms of Al₁₂X and Their Cluster Salts