Mass distributions of copper, silver and gold clusters and electronic shell structure

Katakuse, Itsuo; Ichihara, Toshio; Fujita, Y.; Matsuo, T.; Sakurai, Toru; Matsuda, Hisashi

doi:10.1016/0168-1176(85)80021-5

Cited by 417 publications

(181 citation statements)

References 12 publications

Supporting

Mentioning

152

Contrasting

Order By: Relevance

“…Significantly larger Au + n clusters were found some years later in experiments using a sputter ion cluster source (Katakuse et al 1985). The ion-intensity distributions that were recorded showed a size-dependent structure, which was interpreted in terms of the spherical jellium model (Knight et al 1984).…”

Section: Introductionmentioning

confidence: 99%

Determining the size-dependent structure of ligand-free gold-cluster ions

Schooss

Weis

Hampe

et al. 2010

Phil. Trans. R. Soc. A.

112

108

View full text Add to dashboard Cite

Ligand-free metal clusters can be prepared over a wide size range, but only in comparatively small amounts. Determining their size-dependent properties has therefore required the development of experimental methods that allow characterization of sample sizes comprising only a few thousand mass-selected particles under well-defined collisionfree conditions. In this review, we describe the application of these methods to the geometric structural determination of Au + n and Au − n with n = 3-20. Geometries were assigned by comparing experimental data, primarily from ion-mobility spectrometry and trapped ion electron diffraction, to structural models from quantum chemical calculations.

show abstract

Section: Introductionmentioning

confidence: 99%

Determining the size-dependent structure of ligand-free gold-cluster ions

Schooss

Weis

Hampe

et al. 2010

Phil. Trans. R. Soc. A.

112

108

View full text Add to dashboard Cite

show abstract

“…The determination of structural and electronic properties and the growth pattern of coinage metal clusters are of much interest both experimentally [10,11,12,13,14,15,16,17,18] and theoretically [19,20,21,22,23,24]. The electronic configuration of the coinage metals are characterized by a closed d shell and a single s valance electron [Cu : Ar(3d) 10 (4s) 1 , Ag : Kr(4d) 10 (5s) 1 , Au : Xe(5d) 10 (6s) 1 ]. Due to the presence of single s electrons in the atomic outer shells, the noble metal clusters are expected to exhibit certain similarities to the alkali metal clusters.…”

Section: Introductionmentioning

confidence: 99%

Structure and stability of copper clusters: A tight-binding molecular dynamics study

2004

View full text Add to dashboard Cite

In this paper we propose a tight-binding molecular dynamics with parameters fitted to firstprinciples calculations on the smaller clusters and with an environment correction, to be a powerful technique for studying large transition/noble metal clusters. In particular, the structure and stability of Cun clusters for n = 3−55 are studied by using this technique. The results for small Cun clusters (n = 3 − 9) show good agreement with ab initio calculations and available experimental results. In the size range 10 ≤ n ≤ 55 most of the clusters adopt icosahedral structure which can be derived from the 13-atom icosahedron, the polyicosahedral 19-, 23-, and 26-atom clusters and the 55-atom icosahedron, by adding or removing atoms. However, a local geometrical change from icosahedral to decahedral structure is observed for n = 40 − 44 and return to the icosahedral growth pattern is found at n = 45 which continues. Electronic "magic numbers" (n = 2, 8, 20, 34, 40) in this regime are correctly reproduced. Due to electron pairing in HOMOs, even-odd alternation is found. A sudden loss of even-odd alternation in second difference of cluster binding energy, HOMO-LUMO gap energy and ionization potential is observed in the region n ∼ 40 due to structural change there. Interplay between electronic and geometrical structure is found.

show abstract

“…This effect is particularly strong in the case of silver, intermediate for copper and comparatively weak for gold. Qualitatively, the effect can be related to the exceptional stability of the 9-atomic ion due to the electronic shell closing at 8 atomic valence electrons [33,34,13].…”

mentioning

confidence: 99%

Photodissociation of small group-11 metal cluster ions: Fragmentation pathways and photoabsorption cross sections

Vogel

Herlert

Schweikhard

2003

J. Am. Soc. Mass Spectrom.

View full text Add to dashboard Cite

Noble metal cluster ions Cu n ϩ , Ag n ϩ and Au n ϩ (n ϭ 3-21) have been stored in a Penning trap and photodissociated by low intensity laser pulses of 10 ns at photon energies of 3.49 eV and 4.66 eV. The fragmentation pathways, neutral monomer and dimer evaporation, have been monitored as a function of cluster size, excitation energy and element. It is found that the behavior of the branching ratio between monomer and dimer evaporation as a function of excitation energy depends on the metal under investigation. In particular, the slope of the energy dependence is positive for silver but negative for gold and copper cluster ions. Furthermore, photoabsorption cross sections are determined from observed total fragment yields in single-photon dissociation. (J Am Soc Mass Spectrom 2003, 14, 614 -621)

show abstract

Mass distributions of copper, silver and gold clusters and electronic shell structure

Cited by 417 publications

References 12 publications

Determining the size-dependent structure of ligand-free gold-cluster ions

Determining the size-dependent structure of ligand-free gold-cluster ions

Structure and stability of copper clusters: A tight-binding molecular dynamics study

Photodissociation of small group-11 metal cluster ions: Fragmentation pathways and photoabsorption cross sections

Contact Info

Product

Resources

About