Journal ArticleDOI
Curve Crossing in Collisional Dissociation of Alkali Halide Molecules
TLDR
In this article, the branching ratio of atom pairs/ion pairs is interpreted in terms of the effective width of the adiabatic dissociation channel, compared with the spacing of the vibrational levels of the diabatic bound state.Abstract:
The primary dissociation step for alkali halide diatomics in argon has been studied in order to determine whether collisional dissociation produces ions, atoms, or a mixture of both types of products. The method is based on time‐resolved absorption spectroscopy of shock‐heated vapors. Results show that the cesium halides, and the rubidium and potassium halides, with the exception of the two iodides, dissociate essentially completely to ions; that the lithium salts and NaI and NaBr dissociate essentially completely to atoms; and that the other alkali halides (KI, RbI, NaCl, and probably NaF) dissociate to mixtures of atoms and ions, at least under some conditions. The branching ratio of atom pairs/ion pairs is interpreted in terms of the effective width of the adiabatic dissociation channel, compared with the spacing of the vibrational levels of the diabatic bound state.read more
Citations
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Journal ArticleDOI
Quenching cross sections for electronic energy transfer reactions between metastable argon atoms and noble gases and small molecules
TL;DR: The reaction rate constants for the quenching of electronic energy in metastable argon (3P0,2) by Kr, Xe, and a number of simple molecules have been measured as mentioned in this paper.
Journal ArticleDOI
Long-range configuration interaction of ionic and covalent states
R. Grice,Dudley R. Herschbach +1 more
TL;DR: A simple approximation based on asymptotic wavefunctions is used to calculate the splitting ΔV(R c) between the pair of adiabatic potential energy curves that arise from pseudo-crossing of ionic and covalent states of a diatomic molecule at a large internuclear distance R c as discussed by the authors.
Journal ArticleDOI
Collisional ionization and elastic scattering in alkali–halogen atom collisions
M. B. Faist,R. D. Levine +1 more
TL;DR: In this paper, a two-state computations for collisional ionization and elastic scattering in Na+I and Li+I collisions have been made, using realistic model potentials, at a large range of postthreshold energies.
Book ChapterDOI
Rare gas halogen excimers
TL;DR: Although the rare gas halide lasers were discovered only about three years ago, they have received a great deal of attention since then and are presently the most highly developed excimer lasers as mentioned in this paper.
Journal ArticleDOI
Multiphoton excitation, ionization, and dissociation decay dynamics of small clusters of niobium, tantalum, and tungsten: Time‐resolved thermionic emission
TL;DR: In this paper, the ionization dynamics of transition metal clusters were investigated using time-of-flight mass and electron spectroscopy following single and two-photon excitation by pulsed laser light.
References
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The Calculation of the Absolute Strengths of Spectral Lines
TL;DR: In this paper, it is shown that for the simpler systems (i.e., systems with a single electron outside closed shells) the method gives remarkably accurate results; indeed, it appears superior to the normal rather laborious procedure involving the computation of the necessary wave functions, in each individual case, by solution of the appropriate Hartree or Fock differential equation.
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Self-Consistent-Field Dirac-Slater Wave Functions for Atoms and Ions. I. Comparison with Previous Calculations
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Diffusion theory of nonequilibrium dissociation and recombination
James C. Keck,George F. Carrier +1 more
TL;DR: In this article, the coupled vibration-dissociation-recombination process for molecules and atoms has been examined and techniques for solving the appropriate master equations for both quantum (discrete) and classical (continuous) models are given.
Journal ArticleDOI
Interaction of Vibrational and Electronic Motion in Alkali Halide Molecules
TL;DR: In this paper, a treatment was developed to interpret the observation that in corresponding regions of the ultraviolet the absorption spectra of sodium iodide and potassium iodide show a band system and a continuum, respectively.
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