A Mathematical Theory for Vibrational Levels Associated with Hydrogen Bonds II: The Non--Symmetric Case

Abstract : We propose an alternative to the usual time--independent Born--Oppenheimer approximation that is specifically designed to describe molecules with non--symmetrical hydrogen bonds. In our approach, the masses of the hydrogen nuclei are scaled differently from those of the heavier nuclei, and we employ a specialized form for the electron energy level surface. As a result, the different vibrational modes appear at different orders of approximation. Although we develop a general theory, our analysis is motivated by an examination of the F H Cl- ion. We describe our results for it in detail. We prove the existence of quasimodes and quasienergies for the nuclear vibrational and rotational motion to arbitrary order in the Born--Oppenheimer parameter epsilon. When the electronic motion is also included, we provide simple formulas for the quasienergies up to order epsilon cubed that compare well with experiment and numerical results.
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-00380507
Contributor : Alain Joye <>
Submitted on : Friday, May 1, 2009 - 5:38:26 PM
Last modification on : Thursday, January 11, 2018 - 6:12:14 AM

Identifiers

  • HAL Id : hal-00380507, version 1

Collections

Citation

George Hagedorn, Alain Joye. A Mathematical Theory for Vibrational Levels Associated with Hydrogen Bonds II: The Non--Symmetric Case. Reviews in Mathematical Physics, World Scientific Publishing, 2009, 21, pp.279-313. ⟨hal-00380507⟩

Share

Metrics

Record views

156