Journal ArticleDOI
Relaxation of Molecules with Chemically Significant Amounts of Vibrational Energy: The Dawn of the Quantum State Resolved Era
R. E. Weston,G. W. Flynn +1 more
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TLDR
The Lindemann mechanism as mentioned in this paper is the simplest model for chemical reactions that proceed by unimolecular decomposition in the gas phase, in which a substrate S is excited by collisions to a level S* with energy sufficient to cause bond breaking or molecular rearrangement.Abstract:
The simplest model for chemical reactions that proceed by unimolecular decomposition in the gas phase is the Lindemann mechanism, in which a substrate S is excited by collisions to a level S* with energy sufficient to cause bond breaking or molecular rearrangement ( 1-3). For large molecules, the time scale for decomposition of S* is sufficiently long that further collisions with the bath molecules can cause deactivation of the excited substrate, thus quenching the reaction process. The overall mech anism can be summarized by the following equations:read more
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Vibrational energy transfer
TL;DR: In this paper, the collision dynamics of vibrational energy transfer are discussed. But the main focus is on three broad areas within this field: (i) vibrational transfer in large molecules (>10 modes) at low excitation, (ii) vibration energy transfer of large molecules at high vibrational excitation and (iii) vibration transfer of highly excited small molecules.
Journal ArticleDOI
Vibrational Energy Transfer Modeling of Nonequilibrium Polyatomic Reaction Systems
TL;DR: The use of energy transfer data and models in describing nonequilibrium polyatomic reaction systems is discussed in this article with particular emphasis on the information needed for modeling vibrational energy transfer.
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Multiple Roles of Highly Vibrationally Excited Molecules in the Reaction Zones of Detonation Waves
TL;DR: In this paper, the authors extended the nonequilibrium Zeldovich−von Neumann−Doring (NEZND) theory of self-sustaining detonation in liquid and solid explosives.
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Direct measurement of photoisomerization lifetimes for laser-excited methylcycloheptatriene molecules
TL;DR: In this article, the lifetime for photoisomerization of these state-selected species under collision-free conditions is measured via light absorption of the hot species and/or the hot products.