Chemical Reactivity as a Probe of Ionic-Liquid Surfaces

McKendrick, Kenneth G.; Waring, Carla; Bagot, Paul A.J.; Costen, Matthew L.

doi:10.21236/ada503184

Cited by 1 publication

(1 citation statement)

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“…This result has been employed by Paterson et al 27 in the analysis of their experiments and proven by them in an alternate derivation. 34 The rate constant in Eq. ͑12͒, k inel ͑j i ͒, is independent of K. Thus, inelastic scattering results in an equivalent destruction of all tensor moments of the density matrix of the initially prepared state.…”

Section: ͑9͒mentioning

confidence: 99%

Tensor cross sections and the collisional evolution of state multipoles: OH(XΠ2)–Ar

Dagdigian

Alexander

2009

The Journal of Chemical Physics

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By means of a kinetic analysis, we show that the overall rate constant for the collisional loss of orientation or alignment of a rotational level is the sum of the rate constant for elastic depolarization and the sum of the rate constants for all rotationally inelastic transitions out of the level under consideration. An expression for the depolarization cross section is derived in terms of tensor cross sections, and the relationship of depolarization to m-resolved transitions is discussed. We use this formalism in simulations, based on high-quality ab initio potential energy surfaces, of the depolarization of the open-shell molecule OH(X (2)Pi) through collisions with Ar. Good agreement is seen with the results of the two-color polarization spectroscopy experiments of Paterson et al. [J. Chem. Phys. 129, 074304 (2008)]. In addition, we show that the major contribution to elastic collisional depolarization occurs not from weak, glancing collisions but from encounters which probe the inner wall of the potential energy surface.

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Section: ͑9͒mentioning

confidence: 99%