We present a revised reaction set for low pressure high density CF4 plasma modelling. A global model (volume averaged) was developed to study a CF4 discharge that includes the neutral species CF4, ...

https://iopscience.iop.org/article/10.1088/1361-6595/aaf412/pdf

A global model study of low pressure high density CF4 discharge

Results of an experimental study of binary recombination of para- and ortho-H + ions with electrons are presented. Near-infrared cavity-ring-down absorption spectroscopy was used to probe the lowest rotational states of H + ions in the temperature range of 77–200 K in an H + -dominated afterglow plasma. By changing the para/ortho abundance ratio, we were able to obtain the binary recombination rate coefficients for pure para-H + and ortho-H + . The results are in good agreement with previous theoretical predictions.

https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2012.0097

Binary recombination of para- and ortho-H3+ with electrons at low temperatures

The cross section for resonant ion-pair formation in the collision of low-energy electrons with HF+ is calculated by the solution of the time-dependent Schrodinger equation with multiple coupledsta ...

Resonant ion-pair formation in electron recombination with HF+

The process of dissociative electron attachment (DEA) to molecules with several vibrational degrees of freedom is usually treated in the approximation of the local potential for the description of the nuclear motion. We develop the nonlocal complex potential theory to treat the dissociation dynamics when there is more than one vibrational mode in the neutral molecule. We demonstrate the application of the multimode nonlocal theory to a generic molecule of the type $\mathrm{C}{Y}_{3}X$, where Y denotes the H or F atom and X denotes the halogen atom, with the inclusion of symmetric C--X stretch and $\mathrm{C}{Y}_{3}$ deform (``umbrella'') vibrational modes. We present results for the dependence of DEA cross sections on the electron energy and vibrational energy for the ${\mathrm{CF}}_{3}\mathrm{Cl}$ molecule in the two-mode approximation. The 1.5 eV peak in the DEA cross section is well described in the one-mode approximation. However, inclusion of additional modes is required to explain the experimentally observed low-energy peak in the DEA cross section at the vibrational temperature ${T}_{v}=800$ K.

Nonlocal complex potential theory of dissociative electron attachment: Inclusion of two vibrational modes

The formation of the ion pair H-2(+)+ H- in electron recombination with H-3(+) is studied. The diabatic potentials and electronic couplings are extracted from ab initio electron scattering calcul ...

Electron collisions with H3+ : Ion-pair formation

The process of resonant ion-pair formation following electron collisions with H3+ is studied. The relevant diabatic potential energy surfaces and the electronic couplings between these surfaces are calculated. The reaction is then described using a time-dependent approach with wave packets propagating on the coupled potentials. In order to describe the reaction, it is found necessary to include at least two dimensions in the model. The effects of the Rydberg states on the cross-section for this process are discussed.

Ion-pair formation in electron recombination with H3+.

We present the results of a theoretical study of dissociative electron attachment (DEA) of low-energy electrons to CF2. We carried out electron scattering calculations using the complex Kohn variational method at the static-exchange and relaxed self-consistent field (SCF) level at the equilibrium geometry and compare our differential cross sections to other results. We then repeated these calculations as a function of the three internal degrees of freedom to obtain the resonance energy surfaces and autoionization widths. We use this data as input to form the Hamiltonian relevant to the nuclear dynamics. The multidimensional wave equation is solved using the multiconfiguration time-dependent Hartree (MCTDH) approach within the local approximation.

/pdf/low-energy-dissociative-electron-attachment-to-cf2-gmq6ivlf82.pdf

Low-energy dissociative electron attachment to CF2

Erratum: Simplified model to treat the electron attachment of complex molecules: Application to H 2 CN and the quest for the CN − formation mechanism [Phys. Rev. A 99 , 032701 (2019)]

Dissociative Recombination of Molecular Ions: Preface

Dissociative Recombination of Molecular Ions: Applications

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