Publication

Electronic and vibrational relaxation in Rydberg and valence states of nitric oxide in neon matrixes

Majed Chergui
1988
Journal Articles

Abstract

New time and energy resolved data on vibrationally relaxed and unrelaxed emissions from the valence a4P(v = 0), B2P(v = 0,3,4,5), and the Rydberg A2S+ (v = 0,1,2) states of NO in Ne matrixes are reported. Rydberg .tautm. valence and valence .tautm. valence nonradiative transitions were identified. The Rydberg -> valence transitions occur after lattice relaxation accommodating the Rydberg orbital. The branching ratios for intramol. relaxation and the measured lifetimes are described in terms of a model which combines the intramol. spin-orbit matrix elements and Franck-Condon factors with the spectroscopically detd. phonon Franck-Condon factors. For the levels B2P(v = 5,6), a Foerster-Dexter-type energy transfer between NO mols. is invoked in the description of the relaxation cascade. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/7135b868-fb98-4269-9301-613685a117d7

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Majed Chergui
1988
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/7135b868-fb98-4269-9301-613685a117d7

About this result

Related concepts (32)

Energy level

A quantum mechanical system or particle that is bound—that is, confined spatially—can only take on certain discrete values of energy, called energy levels. This contrasts with classical particles, which can have any amount of energy. The term is commonly used for the energy levels of the electrons in atoms, ions, or molecules, which are bound by the electric field of the nucleus, but can also refer to energy levels of nuclei or vibrational or rotational energy levels in molecules.

Rydberg constant

In spectroscopy, the Rydberg constant, symbol for heavy atoms or for hydrogen, named after the Swedish physicist Johannes Rydberg, is a physical constant relating to the electromagnetic spectra of an atom. The constant first arose as an empirical fitting parameter in the Rydberg formula for the hydrogen spectral series, but Niels Bohr later showed that its value could be calculated from more fundamental constants according to his model of the atom.

Rydberg formula

In atomic physics, the Rydberg formula calculates the wavelengths of a spectral line in many chemical elements. The formula was primarily presented as a generalization of the Balmer series for all atomic electron transitions of hydrogen. It was first empirically stated in 1888 by the Swedish physicist Johannes Rydberg, then theoretically by Niels Bohr in 1913, who used a primitive form of quantum mechanics. The formula directly generalizes the equations used to calculate the wavelengths of the hydrogen spectral series.

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Electronic and vibrational relaxation in Rydberg and valence states of nitric oxide in neon matrixes

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