Results 131 to 140 of about 1,812 (177)

Pseudopotential Theory of Atomic and Molecular Rydberg States

The Journal of Chemical Physics, 1966
In this paper we present a description of atomic and molecular Rydberg states using an effective Hamiltonian in the one-electron Hartree—Fock approximation. A pseudopotential is introduced to ensure the orthogonality of the Rydberg orbitals to the core. The core is represented by the ground-state wavefunction of the corresponding positive ion. In order
Hazi, Andrew A.U., Rice, Stuart
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Nonexponential autoionization decays in molecular Rydberg states

Physical Review A, 1989
Etude des desactivations d'autoionisation des etats de Rydberg nd 1 Λ g de Na 2 en presence d'un faible champ electrique. Dans certaines conditions, on observe des signaux dont la forme differe notablement du comportement usuel. Ces decroissances sont decrites par un modele simple qui rend compte des interactions avec des niveaux discrets et ...
, Bordas, , Labastie, , Brevet, , Broyer
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Triplet Rydberg states in molecular nitrogen

The Journal of Chemical Physics, 1986
A pulsed electric discharge in a pulsed supersonic jet of N2 is found to produce high densities of metastable E3Σ+gN2. Subsequent laser irradiation of these metastables results in single-photon excitation to autoionizing states. Singly charged cations are detected by time-of-flight mass spectrometry or alternatively, ejected electrons are detected by ...
S. W. Sharpe, P. M. Johnson
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Electronic Structure of Molecular Rydberg States

Chinese Physics Letters, 1992
Comprehensive theoretical results of the molecular Rydberg structures with the total-electron numbers starting from 2 to 18 are reported. We attempt to elucidate: (1) systematic trends of the variation of the eigen quantum defects among those molecules, (2) characteristics of the molecular dynamics between the excited electron and the corresponding ...
Yang Huanwang, Sun Biao, Li Jiaming
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Method for calculating molecular Rydberg states

The Journal of Chemical Physics, 1974
The multiple-scattering X α method is used to construct a potential suitable for Rydberg states and to obtain its eigenvalues. The method is checked by performing atomic calculations for Z ≤ 36 and gives good values. Molecular calculations are carried out with HF or BF3, and good agreement is obtained with experiment. Extensions to larger molecules are
F. W. Averill, T. E. H. Walker, J. T. Waber   +2 more
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Microwave transitions between molecular Rydberg states

Chemical Physics Letters, 1985
Abstract Microwave transitions are observed for the first time between molecular Rydberg states in an optical—optical—microwave triple-resonance experiment carried out on Rydberg states of the Na 2 molecule. A new Rydberg series of u symmetry is observed and its quantum defect is measured (μ = 0.14).
P. Goy, M.Chr. Bordas, M. Broyer, P. Labastie, B. Tribollet   +4 more
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The Size of Molecular Rydberg States Revisited

Journal of Molecular Spectroscopy, 1996
Abstract The isotropic diameters, d vol , of several rare gases and molecules in their ground and electronically excited states are calculated from the volumes obtained using a Monte Carlo integration of the electronic wave function that covers >98% of the electron density. This method provides a more reliable estimate as compared with the root-mean-
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Rydberg State Reactions of Atomic and Molecular Hydrogen

The Journal of Physical Chemistry, 1995
Various aspects of the atomic and molecular Rydberg state reactions that result in H[sub 3][sup +] formation by associative ionization and by chemiionization are presented. For associative ionization, the n = 2 Rydberg state was prepared both by direct photodissociation of H[sub 2] and D[sub 2] in the continuum both above the first dissociation limit ...
P. M. Dehmer, W. A. Chupka
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Aspects of Molecular Rydberg States

1974
Spectroscopy in the region beyond 50,000 cm−1 is difficult for both technical and fundamental reasons. With regard to the latter, consider a typical molecule with a set of occupied valence shell MO’s, ψ, and a corresponding set of virtual valence shell MO’s, ψ*, Fig. 1.
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Rydberg states: sensitive probes of molecular structure

Chemical Physics Letters, 2003
Using the isomers naphthalene and azulene, and isomeric forms of the cyclohexadiene/hexatriene system, we demonstrate that the energies of Rydberg states are sensitive to the geometrical structure of the molecular ion core. Rydberg states with low quantum numbers are conveniently accessed using multi-photon excitation via valence states, providing ...
Narayanan Kuthirummal, Peter M Weber
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