Results 161 to 170 of about 5,389 (204)
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Photoionization of N2O: Mechanisms of photoionization and ion dissociation
Journal of Chemical Physics, 1977From high resolution photoionization mass spectrometric data on normal and isotopically substituted N2O it is concluded that the formation of NO+ below the à state of N2O+ but above the thermochemical threshold involves the calculated but hitherto unobserved 4A″ state.
Eland J H D, Berkowitz J
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Electronic Spectroscopy and Photoionization of LiBe
The Journal of Physical Chemistry A, 2021Dimers consisting of an alkali metal bound to an alkaline earth metal are of interest from the perspectives of their bonding characteristics and their potential for being laser cooled to ultracold temperatures. There have been experimental and theoretical studies of many of these species, but spectroscopic data for LiMg and the LiMg+ cation are sparse.
Thomas D. Persinger +2 more
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Photoionization of the beryllium atom
Physical Review A, 1995Photoionization cross sections of the Be atom are calculated using the hyperspherical close-coupling method where a model potential is employed to approximate the screening of the 1[ital s][sup 2] closed-shell core electrons. The cross sections obtained below the Be[sup +](2[ital p]) threshold agree well with the results of other calculations and with ...
, Zhou, , Lin
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Physical Chemistry Chemical Physics, 2023
Internal energy selected valence ionized iodomethane exhibits more than 20 fragmentation pathways, identified based on the breakdown diagram, the kinetic energy release, and the known dissociative ionization energies.
Andras Bodi +2 more
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Internal energy selected valence ionized iodomethane exhibits more than 20 fragmentation pathways, identified based on the breakdown diagram, the kinetic energy release, and the known dissociative ionization energies.
Andras Bodi +2 more
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Dissociative photoionization of N2O: Analytical photoion spectroscopy
The Journal of Chemical Physics, 1989Branching ratios of ions produced from the dissociative photoionization of N2O have been measured by using a time-of-flight mass spectrometer and synchrotron radiation in the 15–36 eV region. The branching ratios in the Franck–Condon gap (15.0–16.4 eV) indicate that the autoionizing Rydberg states in this region predissociate to NO+ and O+ through ...
Toshio Masuoka, Shichiro Mitani
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Photoionization and dissociative photoionization of the allyl radical, C3H5
International Journal of Mass Spectrometry, 2007The photoionization and dissociative photoionization of the allyl radical in the VUV range was investigated using synchrotron radiation. Allyl radicals were generated by flash pyrolysis from allyl iodide and 1,5-hexadiene. Mass spectra show the appearance Of C3H3+ as a fragment in the dissociative photoionization of allyl above 10 eV.
Fischer, I. +4 more
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Photoionization of metal clusters
Physical Review B, 1996The photoionization cross section of metal clusters is studied using simple theoretical models. In the case of small clusters, the plasmon is well below the photoionization threshold and the photoionization is dominated by simple independent-particle processes: One electron absorbs all the energy of the photon and immediately leaves the cluster.
, Koskinen, , Manninen
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Photoelectron–photoion–photoion coincidence in Ar dimers
Journal of Physics B: Atomic, Molecular and Optical Physics, 2004Photoelectron–photoion–photoion coincidence momentum imaging was applied to study 2p photoemission from Ar dimers. We present measurements of the kinetic energy released in fragmentation of Ar++2, angular distributions of energetic fragments, angular distributions of photoelectrons in the laboratory frame and in the molecular frame.
A De Fanis +13 more
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Rearrangement effects in photoionization
Applied Optics, 1980The recent developments and the physical backgrounds of the random phase approximation with exchange (RPAE) method are briefly discussed. The limitations of RPAE and the main features of a more general theory that would be free of RPAE difficulties are considered.
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Photoionization of Free Radicals
International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry, 1974Since this is the first lecture at this Institute on photoionization and free radicals, permit me to take a few minutes to outline my concept of these terms.
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