Free clusters studied by core-level spectroscopies

Björneholm, Olle; Öhrwall, Gunnar; Tchaplyguine, Maxim

doi:10.1016/j.nima.2008.12.222

Cited by 38 publications

(20 citation statements)

References 117 publications

(173 reference statements)

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“…[12][13][14] Photoabsorption and -ionization studies have also proven useful in providing information on the mechanisms of charge solvation, as well as on the electronic properties of various ionic species. 15,16 The advances in spectroscopic methods based on the multi-coincident detection of particles have opened up new avenues for studying multiply charged clusters, leading for instance to the discovery of inter-molecular decay (ICD), a mechanism that transfers the electronic excess energy between neighboring molecules.…”

Section: Introductionmentioning

confidence: 99%

The role of charge and proton transfer in fragmentation of hydrogen-bonded nanosystems: the breakup of ammonia clusters upon single photon multi-ionization

Oostenrijk

Walsh

Laksman

et al. 2018

Phys. Chem. Chem. Phys.

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The charge and proton dynamics in hydrogen-bonded networks are investigated using ammonia as a model system. The fragmentation dynamics of medium-sized clusters (1-2 nm) upon single photon multi-ionization is studied, by analyzing the momenta of small ionic fragments. The observed fragmentation pattern of the doubly-and triply-charged clusters reveals a spatial anisotropy of emission between fragments (back-to-back). Protonated fragments exhibit a distinct kinematic correlation, indicating a delay between ionization and fragmentation (fission). The different kinematics observed for channels containing protonated and unprotonated species provides possible insights into the prime mechanisms of charge and proton transfer, as well as proton hopping, in such a nanoscale system.

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Section: Introductionmentioning

confidence: 99%

The role of charge and proton transfer in fragmentation of hydrogen-bonded nanosystems: the breakup of ammonia clusters upon single photon multi-ionization

Oostenrijk

Walsh

Laksman

et al. 2018

Phys. Chem. Chem. Phys.

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“…[1][2][3][4] Counterintuitively, this is largely due to the fact that core-hole electrons, being more tightly bound, are more localized as compared to the valence electrons. [1][2][3][4] Counterintuitively, this is largely due to the fact that core-hole electrons, being more tightly bound, are more localized as compared to the valence electrons.…”

Section: Introductionmentioning

confidence: 99%

“…3). In this paper we will concentrate on the XAS of rare gas dimers and small clusters in the L 2,3 region of Ar (245-252 eV).…”

Section: Introductionmentioning

confidence: 99%

Soft X-ray absorption spectroscopy of Ar₂ and ArNe dimers and small Ar clusters

Jabbari

Miteva

Stumpf

et al. 2015

Phys. Chem. Chem. Phys.

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The X-ray absorption spectra (XAS) of Ar2 and ArNe dimers and small Ar clusters in the L2,3 region (244-252 eV) of the Ar atom have been recorded using synchrotron light and a combination of coincidence methods and kinetic energy discrimination of energetic ions. The absorption peaks in the spectra of the dimers and clusters were found to be shifted and broadened relative to the peaks in the spectrum of the Ar atom. In order to unambiguously relate these chemical shifts to the electronic structure of the core excited states in dimers, we performed ab initio calculations of the XAS spectra. Implications of the results for the use of XAS as a structure determination method in large rare gas clusters are discussed.

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“…Owing to their ease of production and simple ground-state configuration, they are the natural choice for studying photoinduced electronic processes [2][3][4]. Besides their value as a fundamental research topic, they can be used for calibration purposes because of the extensive high-precision experiments performed [2,5] on them.…”

Section: Introductionmentioning

confidence: 99%