Results 121 to 130 of about 21,113 (164)

Emission from molecular “rydberg” states in organic media

Journal of Luminescence, 1976
Abstract Fluorescence spectra from the “Rydberg” states of tetraaminoethylenes in various organic solvents and at different temperatures have been studied. The fluorescence maxima shift considerably with the solvent polarity and rigidity. This is explained by taking account of structures of the “Rydberg” state in the solvents.
Yoshihiro Nakato, Hiroshi Tsubomura
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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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Multiphoton probing of molecular Rydberg states

Molecular Physics, 1986
This feature article provides an overview of the additional insights that multiphoton excitation methods are providing to our understanding of the spectroscopy and the photophysics of some of the higher excited electronic states of gas phase molecular species.
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Rydberg States and Scattering States of Molecular Electrons: e–H2+

The Journal of Chemical Physics, 1968
A general method is presented for obtaining a model potential for calculation of Rydberg states and ionized states of an electron in a diatomic (or more complex) molecule. The potential is derived from a known wavefunction for the ionic molecule core by expanding the charge distribution, including the fixed-position nuclei, in spherical harmonics ...
R. Stephen Berry, Svend Erik Nielsen
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Theory of Molecular Rydberg States

2011
Molecular Rydberg states have many unusual properties, lending themselves to a diverse range of experimental applications. This book is designed to unravel the mysteries of molecular Rydberg states that lie beyond the scope of accepted spectroscopic theories.
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Polarization labelling spectroscopy of molecular Li2 rydberg states

Zeitschrift für Physik D Atoms, Molecules and Clusters, 1987
A series ofnd δ1Δg Rydberg states of the Li2 molecule has been measured using the polarization labelling technique. The experimental term values and the quantum defects derived from them, are compared with theoretical values obtained from ab initio calculations. The different physical effects contributing to the quantum defects are discussed.
B. Hemmerling, R. Bombach, W. Demtröder, N. Spies   +3 more
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Rydberg-to-valence evolution in excited state molecular dynamics

International Reviews in Physical Chemistry, 2020
We present an overview of experimental and theoretical investigations exploring the dynamical evolution of Rydberg-to-valence character in the electronically excited states of small polyatomic mole...
Martin J. Paterson, Dave Townsend
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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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Shape-resonance-induced long-range molecular Rydberg states

Journal of Physics B: Atomic, Molecular and Optical Physics, 2002
When an excited atomic electron interacts with a neutral perturbing atom or molecule that possesses a shape resonance, it generates a characteristic class of Born-Oppenheimer potential curves that rise with internuclear distance. We document this effect, and predict the existence of a diverse class of stable, strongly bound atom-atom and atom-molecule ...
Edward L Hamilton, Chris H Greene, H R Sadeghpour   +2 more
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High lying gerade Rydberg states of molecular iodine

The Journal of Chemical Physics, 1989
Two new (2+1) multiphoton ionization spectra of gerade Rydberg states of molecular iodine are observed in the 310.0–322.5 and the 285.5–295.5 nm ranges. These spectra were obtained in both a conventional MPI cell and in a TOF molecular beam apparatus. A long progression in the 310.0–322.5 nm range is suggested to be 2g(2Π3/2g)ndσg, having a band origin
Ming Wu, Philip M. Johnson
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