Comprehensive Rate Determinations in an Electronic Intramolecular Collisional Energy Transfer: <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>Δ</mi><mi>E</mi></math></span> and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>Δ</mi><mi>J</mi></math></span> Propensity Rules through a Surprisal Analysis

F. Carrot; M. Aubert-Frecon; R. Bacis; S. Churassy; J. Verges

doi:10.1103/PhysRevLett.57.420

Comprehensive Rate Determinations in an Electronic Intramolecular Collisional Energy Transfer: $Δ E$ and $Δ J$ Propensity Rules through a Surprisal Analysis

F. Carrot, M. Aubert-Frecon, R. Bacis, S. Churassy, and J. Verges

Phys. Rev. Lett. 57, 420 – Published 28 July 1986

Abstract

Extensive studies of a pure electronic transfer $B {}^{1}Π_{u} \to 2 {}^{1}Σ_{g}^{+}$ in lithium dimers colliding with Li atoms enable the rates to some 600 ( ${}^{7}{Li}_{2}$ ) or 400 ( ${}^{6}{Li}_{2}$ ) channels from a single level of $B {}^{1}Π_{u}$ to be found. This is the first complete direct analysis of pure electronic transfer in a diatomic molecule. The information-theoretic approach points out the main physical facts and clarifies $Δ E$ and $Δ J$ propensity rules.