Coriolis coupling as a source of non-RRKM effects in triatomic near-symmetric top molecules: Diffusive intramolecular energy exchange between rotational and vibrational degrees of freedom

A classical theory is proposed to describe the non-RRKM effects in activated asymmetric top triatomic molecules observed numerically in classical molecular dynamics simulations of ozone. The Coriolis coupling is shown to result in an effective diffusive energy exchange between the rotational and vib...

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Veröffentlicht in:The Journal of chemical physics 2010-06, Vol.132 (22), p.224304-224304
Hauptverfasser: Kryvohuz, M, Marcus, R A
Format: Artikel
Sprache:eng
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Zusammenfassung:A classical theory is proposed to describe the non-RRKM effects in activated asymmetric top triatomic molecules observed numerically in classical molecular dynamics simulations of ozone. The Coriolis coupling is shown to result in an effective diffusive energy exchange between the rotational and vibrational degrees of freedom. A stochastic differential equation is obtained for the K-component of the rotational angular momentum that governs the diffusion.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.3430508