𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Anharmonicity: a route to vibrational localization

✍ Scribed by Qing-shi Zhu; Hua-feng Li; Xiao-gang Wang

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
415 KB
Volume
212
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

The quenching effect of anhannonicity on the inter-bond coupling and Coriolis interaction is studied. The local to normal mode correlation diagrams for XY2 and XYJ stretching overtones up to ~60 and 20, respectively, are calculated in the normal mode model with Darling-Dennison resonances included. The results show that the high-energy stretching vibrations tend to be bondlocalized owing to the anharmonic ( Darling-Dennison) resonances.

πŸ“œ SIMILAR VOLUMES

General anharmonic local mode approach t
General anharmonic local mode approach to molecular vibrations
✍ R. Lemus; A. Frank πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 243 KB

An algebraic approach to describe the vibrational excitations of molecules is presented. The model is established in a local mode scheme and involves an anharmonization procedure in which the local harmonic oscillators associated to each internal degree of freedom are substituted by Morse oscillator

Vibrational Excitations of Methane in th
Vibrational Excitations of Methane in the Framework of a Local-Mode Anharmonic Model
✍ R. Lemus; A. Frank πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 263 KB

The stretching and bending vibrations of methane are described in a local-mode anharmonic symmetry adapted model. Both Hecht-and Fermi-like interactions are considered. We start by establishing the Hamiltonian of the system in terms of internal coordinates and momenta. The Hamiltonian is then rewrit

Anharmonicity effect on vibrational rela
Anharmonicity effect on vibrational relaxation in carbon monoxide
✍ A. Joanna Taylor; F.A. Gianturco πŸ“‚ Article πŸ“… 1969 πŸ› Elsevier Science 🌐 English βš– 290 KB

A previous mode1 for calculating the cross sections of the vibrational excitation of carbon monoxide by collision with carbon monoxide has been improved to include anharmonicity effects in the vibrational wavefunctions by describing them in terms of Morse oscillators. It is shown that this leads to