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- E Gridelet, Dominique Dehareng, R C Locht, A J Lorquet, J C Lorquet, Bernard Leyh
- The journal of physical chemistry. A
- 2005

The kinetic energy release distributions (KERDs) for the fluorine atom loss from the 1,1-difluoroethene cation have been recorded with two spectrometers in two different energy ranges. A first experiment uses dissociative photoionization with the He(I) and Ne(I) resonance lines, providing the ions with a broad internal energy range, up to 7 eV above the… (More)

- E Gridelet, R C Locht, A J Lorquet, J C Lorquet, Bernard Leyh
- The journal of physical chemistry. A
- 2008

Kinetic energy release distributions (KERDs) for the benzene ion fragmenting into C 4H 4 (+) and C 2H 2 have been recorded by double-focusing mass spectrometry in the metastable energy window and by a retarding field experiment up to an energy of 5 eV above the fragmentation threshold. They are compared with those resulting from the HCN loss reaction from… (More)

- E Gridelet, A J Lorquet, R C Locht, J C Lorquet, Bernard Leyh
- The journal of physical chemistry. A
- 2006

The kinetic energy release distributions (KERDs) associated with the hydrogen loss from the benzene cation and the deuterium loss from the perdeuteriobenzene cation have been remeasured on the metastable time scale and analyzed by the maximum entropy method. The experimental kinetic energy releases are larger than expected statistically, in… (More)

- J C Lorquet
- The Journal of chemical physics
- 2014

We consider a triatomic system with zero total angular momentum and demonstrate that, no matter how complicated the anharmonic part of the potential energy function, classical dynamics in the vicinity of a saddle point is constrained by symmetry properties. At short times and at not too high energies, recrossing dynamics is largely determined by elementary… (More)

- Jonathan Marescaux, Elodie Falisse, J C Lorquet, Karine Van Doninck, Jean-Nicolas Beisel, Jean-Pierre Descy
- Hydrobiologia
- 2016

Due to their high filtration rates, exotic freshwater bivalves remove suspended organic matter from the water column, transferring resources to the sediment and increasing water clarity, which alters ecosystems. While there is a considerable amount of data on filtration rate of exotic bivalves, comparison between species is often invalid due to the… (More)

- J C Lorquet
- The Journal of chemical physics
- 2009

A point charge interacting with a dipole (either induced or permanent) constitutes a completely integrable dynamical subsystem characterized by three first integrals of the motion (E, p(phi), and either l(2) or a Hamilton-Jacobi separation constant beta). An ion-molecule reaction (capture or fragmentation) can be seen as an interaction between such a… (More)

- J C Lorquet
- The Journal of chemical physics
- 2017

The atom-diatom interaction is studied by classical mechanics using Jacobi coordinates (R, r, θ). Reactivity criteria that go beyond the simple requirement of transition state theory (i.e., PR* > 0) are derived in terms of specific initial conditions. Trajectories that exactly fulfill these conditions cross the conventional dividing surface used in… (More)

- J C Lorquet
- The Journal of chemical physics
- 2009

In a two-dimensional space where a point particle interacts with a diatomic fragment, the action integral contour integral of p(theta) d theta (where theta is the angle between the fragment and the line of centers and p(theta) its conjugate momentum) is an adiabatic invariant. This invariance is thought to be a persistent dynamical constraint. Indeed, its… (More)

- V B Pavlov-Verevkin, J C Lorquet
- The Journal of chemical physics
- 2005

Conversion of translational into vibrational energy during the last step of a unimolecular reaction is brought about by the curvature of the reaction path. The corresponding coupling is analyzed by an angle-action reaction path Hamiltonian (RPH). The accuracy of the vibrational adiabatic approximation is found to be completely independent of the shape of… (More)

- E Gridelet, J C Lorquet, Bernard Leyh
- The Journal of chemical physics
- 2005

The translational kinetic energy release distribution (KERD) for the halogen loss reaction of the bromobenzene and iodobenzene cations has been reinvestigated on the microsecond time scale. Two necessary conditions of validity of the orbiting transition state theory (OTST) for the calculation of kinetic energy release distributions (KERDs) have been… (More)