Journal ArticleDOI
Coulombic fission and evaporation of antimony cluster ions
TLDR
The preferential dissociation channels of singly and doubly charged antimony clusters have been determined from the unimolecular dissociation of energy rich cluster ions, using an ion stopping technique.Abstract:
The preferential dissociation channels of singly and doubly charged antimony clusters have been determined from the unimolecular dissociation of energy rich cluster ions, using an ion stopping technique. It is found that singly charged Sb+n clusters with 5≤n≤80 dissociate by loss of neutral molecules. Neutral dimer loss is observed for n=5, 6, 7 whereas for n≥8, Sb+n loses Sb4. The fragmentation of doubly charged Sb++n has been investigated above the critical size n++c=24 from which doubly charged clusters are detectable in mass spectra. On the time scale of the experiment, which is 1 μs≤t≤100 μs with respect to photoionization, the delayed Coulombic fission into two singly charged clusters competes with the evaporation of Sb4. It is shown that for the smaller Sb++n clusters with 26≤n≤36 the fission to two singly charged clusters is of relatively asymmetrical character, leading to the detachment of five and seven atom cationic fragments. In larger clusters n≥40 the fission is of more symmetrical character...read more
Citations
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Journal ArticleDOI
Morphology control of the supported islands grown from soft-landed clusters
Bokwon Yoon,Vladimir M. Akulin,Ph. Cahuzac,F. Carlier,M. de Frutos,A. Masson,C. Mory,Christian Colliex,C. Bréchignac +8 more
TL;DR: In this article, a model involving a competition between the time for aggregated clusters to coalesce and the time interval between successive arrivals of clusters to grow the islands was proposed to account for the island morphologies observed.
Journal ArticleDOI
Nanoclusters and nanocluster systems. Assembling, interactions and properties
Igor P. Suzdalev,P. I. Suzdalev +1 more
TL;DR: In this paper, a classification of nanoclusters and nanosystems based on the method of their preparation is proposed, and the appearance of new properties upon combination of nan-clusters into a nan-osystem is noted.
Journal ArticleDOI
Some aspects of the field evaporation behaviour of GaSb
TL;DR: It is proposed that the complex behaviour of GaSb originates from a combination of spatially correlated evaporation events and the subsequent field induced dissociation of cluster ions, the latter contributing to inaccuracies in the overall atom probe composition determination for this material.
Journal ArticleDOI
Structure and spectroscopy of phosphorus cluster anions : theory (simulated annealing) and experiment (photoelectron detachment)
TL;DR: In this article, electron detachment measurements have been performed on singly charged phosphorus cluster anions with up to nine atoms, generated by a pulsed arc cluster ion source (PACIS), and transitions between the anion ground states and states of the neutral clusters are observed for all clusters, and vibrational fine structure in both dimer and trimer.
Journal ArticleDOI
Gas-phase dissociation pathways of multiply charged peptide clusters.
TL;DR: Electrospray ionization is used to extend the study of cluster dissociation to peptides including leucine enkephalin with 7–19 monomer units and 2–5 protons, and somatostatin with 5 monomers units and 4 protons indicating that monomer conformational flexibility plays a role in peptide cluster Dissociation.
References
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Book ChapterDOI
Structural and Bonding Patterns in Cluster Chemistry
TL;DR: In this paper, the borane-carborane structural pattern has been studied in a wide range of other compounds, including metal clusters, metal-hydrocarbon 7∼ complexes, and various neutral or charged hydrocarbons.
BookDOI
Physics and Chemistry of Small Clusters
TL;DR: In this article, the physical and chemical properties of solid clusters are discussed, including atomic and electronic structure, dynamics, stability, fragmentation, optical properties, interaction with adsorbates, astrochemistry and van der Waals forces of clusters.
Journal ArticleDOI
Generation of Metal Clusters Containing from 2 to 500 Atoms
TL;DR: In this paper, the main problems underlying the experimental study of particles with sizes between single atoms and the solid state have been solved: the formation of metal clusters, their individual detection, and the separation of beams with uniform cluster size.