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Bobbert, C.; Schütte, S.; Steinbach, C.; Buck, U.

doi:10.1007/s10053-002-8868-2

Cited by 63 publications

(104 citation statements)

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“…This method is essentially fragmentationfree due to the very low ionizing photon energy and thus the mass spectrum reflects the original neutral cluster size distribution. Although, we have recently 105 demonstrated that this method is not universal and possible reactions of sodium with cluster constituents can lead to unexpected results [41], for the pure water clusters this method yields the neutral cluster size distributions [32]. More details can be found in [32,40,45,43,44,33,35].…”

Section: Methodsmentioning

confidence: 94%

“…The oven was the same as used in Refs. [32,40]. Subsequently, the clusters passed through the VMI chamber, and in the next chamber the clusters were analyzed by a reflectron time-offlight mass spectrometer (RTOF) described in more detail elsewhere [41,21].…”

Section: Methodsmentioning

confidence: 99%

“…Subsequently, the clusters passed through the VMI chamber, and in the next chamber the clusters were analyzed by a reflectron time-offlight mass spectrometer (RTOF) described in more detail elsewhere [41,21]. The NaPI method was first introduced by Bucks' group [32,40]. Later on it was suggested by Signorells' group as a "sizer for weakly bound ultrafine A c c e p t e d M a n u s c r i p t aerosol particles" due to the fragmentation-free ionization [33].…”

Section: Methodsmentioning

confidence: 99%

“…The NaPI method was fragmentation-free, and thus revealed the original neutral cluster size distribution. On the other hand, relatively large difference was observed between the 50 electron ionization and NaPI in Bucks' group [32]. They studied large water clusters of the mean sizeN ≈ 1200 bombarded by high energy (550 eV) electrons, and measured the loss of ≈280-450 molecules from the (H 2 O) N clusters.…”

Section: Introductionmentioning

confidence: 96%

“…The water cluster fragmentation and energy transfer processes after the ionization are still not completely understood. In this 30 article we compare the electron ionization (EI) mass spectra of water clusters to the spectra obtained by special ionization method of photoionization after Na-doping (NaPI), which is essentially free of cluster fragmentation [32,33]. This method will be outlined in the experimental part.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Extensive water cluster fragmentation after low energy electron ionization

Lengyel

Pysanenko

Poterya

et al. 2014

Chemical Physics Letters

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Section: Methodsmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Extensive water cluster fragmentation after low energy electron ionization

Lengyel

Pysanenko

Poterya

et al. 2014

Chemical Physics Letters

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Ab initio investigation of water clusters (H₂O)_n (n = 2–34)

Qian

Song

et al. 2009

Int J of Quantum Chemistry

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ABSTRACT:Various properties of typical structures of water clusters in the n ϭ 2-34 size regime with the change of cluster size have been systematically explored. Full optimizations are carried out for the structures presented in this article at the HartreeFock (HF) level using the 6-31G(d) basis set by taking into account the positions of all atoms within the cluster. The influence of the HF level on the results has been reflected by the comparison between the binding energies of (H 2 O) n (n ϭ 2-6, 8,11,13,20) calculated at the HF level and those obtained from high-level ab initio calculations at the second-order Møller-Plesset (MP2) perturbation theory and the coupled cluster method including singles and doubles with perturbative triples (CCSD(T)) levels. HF is inaccurate when compared with MP2 and CCSD(T), but it is more practical and allows us to study larger systems. The computed properties characterizing water clusters (H 2 O) n (n ϭ 2-34) include optimal structures, structural parameters, binding energies, hydrogen bonds, charge distributions, dipole moments, and so on. When the cluster size increases, trends of the above various properties have been presented to provide important reference for understanding and describing the nature of the hydrogen bond.

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