scholarly journals The Lowering of Ionization and Dissociation Energies of Molecules and Molecular Ions in Dense Hydrogen Plasma.

1998 ◽  
Vol 7 ◽  
pp. 199-201
Author(s):  
S. I. Anisimov ◽  
Yu. V. Petrov
Keyword(s):  
Hydrogen Plasma ◽  
Molecular Ions ◽  
Dissociation Energies

scholarly journals THE ATOMIC-MOLECULAR PROCESSES IN A HYDROGEN PLASMA AT INITIAL STAGE OF A DISCHARGE

2019 ◽  
pp. 105-109
Author(s):  
V.B. Yuferov ◽  
E.I. Skibenko ◽  
V.I. Tkachov ◽  
V.V. Katrechko ◽  
A.S. Svichkar
Keyword(s):  
Energy Balance ◽  
Hydrogen Plasma ◽  
Molecular Ions ◽  
Plasma Formation ◽  
Molecular Processes ◽  
Initial Stage ◽  
A Charge

For 0-dimensional the task of a hydrogen plasma formation at initial stage of a charge is considered. For these conditions the dynamics of atomic and molecular ions density and energy balance in a hydrogen plasma are considered.

Circumstellar Calcium Chemistry

2004 ◽  
Vol 57 (1) ◽  
pp. 67 ◽  
Author(s):  
Simon Petrie
Keyword(s):  
Dissociative Recombination ◽  
Molecular Ions ◽  
Bond Dissociation Energies ◽  
Circumstellar Envelopes ◽  
Loss Mechanism ◽  
Dissociation Energies ◽  
Mp2 Calculations ◽  
Circumstellar Environments ◽  
High Level ◽  
Recombination Reactions

High-level ab initio calculations are used to explore several aspects of calcium chemistry of direct relevance to formation and reaction of calcium-containing molecules in circumstellar envelopes. Counterpoise-corrected G2 and G2(MP2) calculations have been used to determine the bond dissociation energies (BDEs) of Ca+/NC2n+1H complexes (n = 0, 1, 2); these complexes, and CaNC7H+, are also assessed through counterpoise-corrected MP2(thaw)/6-311 + G(3df,2p) calculations. The relative energies of isomers of the feasible Ca(CN), Ca(C3N), and Ca(C5N) products (which may arise from dissociative recombination of the Ca+/NC2n+1H complexes) are obtained from G2 and G2(MP2) calculations; these calculations also permit evaluation of the thermochemistry of the dissociative recombination reactions in question. Thermochemical data are presented for a possible loss mechanism for calcium-containing neutrals by reaction with molecular ions in circumstellar envelopes. Finally, we provide an empirical assessment of the prospects for detecting the Ca(CN), Ca(C3N), and Ca(C5N) radicals within circumstellar environments.

scholarly journals Radiation Charge Exchange and Radiation Ion-Atom Recombination as a Source of Continual E-M Radiation from Astrophysical Plasma

1993 ◽  
Vol 155 ◽  
pp. 189-189
Author(s):  
A.A. Mihajlov ◽  
M.S. Dimitrijevic ◽  
A.M. Ermolaev
Keyword(s):  
Low Temperature ◽  
Hydrogen Plasma ◽  
Molecular Ions ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Hydrogen Plasmas ◽  
Weakly Ionized ◽  
Reaction Channels ◽  
Electro Magnetic ◽  
Spectral Intensities

We show that for the study of emission from weakly ionized low temperature hydrogen plasmas, the processes A+ + A → A+ + A + ħω and A+ + A → A+2 + ħω (where A denotes a neutral atom in ground state and, A+ and A+2 atomic and molecular ions) must be treaded as a source of continual electro–magnetic radiation from low temperature plasma. Both reaction channels are treated separately and the corresponding total and separate spectral intensities are determined for hydrogen plasma at T < 10000K. The obtained results have been also compared with the corresponding spectral intensities for electron–ion bremsstrahlung and electron–ion photorecombination.

Radiation less transitions in gas phase molecular ions

1980 ◽  
Vol 77 ◽  
pp. 705-718 ◽  
Author(s):  
Sydney Leach ◽  
Gérald Dujardin ◽  
Guy Taieb
Keyword(s):  
Gas Phase ◽  
Molecular Ions
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