Ab InitioCalculations of the Three-body C2+ H + H Dissociative Recombination Channel for the C2H2++ e Reaction

2003 ◽  
Vol 67 (5) ◽  
pp. 407-413 ◽  
Author(s):  
A M Derkatch ◽  
B Minaev ◽  
M Larsson
Keyword(s):  
Dissociative Recombination ◽  
Recombination Channel ◽  
Three Body

Three-Body Breakup in the Dissociative Recombination of the Covalent Triatomic Molecular IonO3+

2007 ◽  
Vol 98 (22) ◽  
Author(s):  
V. Zhaunerchyk ◽  
W. D. Geppert ◽  
M. Larsson ◽  
R. D. Thomas ◽  
E. Bahati ◽  
...  
Keyword(s):  
Dissociative Recombination ◽  
Three Body

scholarly journals Dissociative recombination of the weakly bound NO-dimer cation: Cross sections and three-body dynamics

2005 ◽  
Vol 123 (19) ◽  
pp. 194306 ◽  
Author(s):  
Annemieke Petrignani ◽  
Patrik U. Andersson ◽  
Jan B. C. Pettersson ◽  
Richard D. Thomas ◽  
Fredrik Hellberg ◽  
...  
Keyword(s):  
Cross Sections ◽  
Dissociative Recombination ◽  
Weakly Bound ◽  
Body Dynamics ◽  
Three Body

scholarly journals Three-body fragmentation dynamics of amidogen and methylene radicals via dissociative recombination

2005 ◽  
Vol 71 (3) ◽  
Author(s):  
R. D. Thomas ◽  
F. Hellberg ◽  
A. Neau ◽  
S. Rosén ◽  
M. Larsson ◽  
...  
Keyword(s):  
Dissociative Recombination ◽  
Fragmentation Dynamics ◽  
Three Body

scholarly journals The O(<sup>1</sup>S) dayglow emission as observed by the WIND imaging interferometer on the UARS

1996 ◽  
Vol 14 (6) ◽  
pp. 637-646 ◽  
Author(s):  
V. Singh ◽  
I. C. McDade ◽  
G. G. Shepherd ◽  
B. H. Solheim ◽  
W. E. Ward
Keyword(s):  
Oxygen Atom ◽  
Atomic Oxygen ◽  
Lower Thermosphere ◽  
Dissociative Recombination ◽  
Model Atmosphere ◽  
Emission Rates ◽  
Imaging Interferometer ◽  
Volume Emission ◽  
Excitation Mechanisms ◽  
Three Body

Abstract. Volume emission rate profiles of the O(1D-1S) 5577 Å dayglow measured by the WIND imaging interferometer on the Upper Atmosphere Research Satellite are analyzed to examine the O(1S) excitation mechanisms in the sunlit lower thermosphere and upper mesosphere. The observed emission profiles are compared with theoretical profiles calculated using a model which takes into account all of the known daytime sources of O(1S). These include photoelectron impact on atomic oxygen, dissociative recombination of O+2, photodissociation of molecular oxygen, energy transfer from metastable N2(A3Σ+u) and three body recombination of atomic oxygen. Throughout most of the thermosphere the measured and modelled emission rates are in reasonably good agreement, given the limitations of the model, but in the region below 100 km, where the oxygen atom recombination source is likely to dominate, the measured emission rates are considerably larger than those modelled using the MSIS-90 oxygen atom densities. This discrepancy is discussed in terms of possible inadequacies in the MSIS-90 model atmosphere and/or additional sources of O(1S) at low altitude.

Recent Studies of Three-Body Fragmentation Dynamics via Dissociative Recombination in CRYRING

2003 ◽  
pp. 95-100
Author(s):  
R. Thomas ◽  
S. Datz ◽  
M. Larsson ◽  
W. J. van der Zande ◽  
F. Hellberg ◽  
...  
Keyword(s):  
Dissociative Recombination ◽  
Fragmentation Dynamics ◽  
Three Body

Atmospheric electron–ion and ion–ion recombination processes

1969 ◽  
Vol 47 (10) ◽  
pp. 1711-1719 ◽  
Author(s):  
Manfred A. Biondi
Keyword(s):  
Dissociative Recombination ◽  
Laboratory Studies ◽  
Ion Temperature ◽  
Air Ions ◽  
Atomic Ions ◽  
Recombination Processes ◽  
D Region ◽  
Ion Recombination ◽  
Three Body ◽  
Large Coefficient

The electron–ion and ion–ion recombination processes of importance in the upper atmosphere are considered, and available laboratory experimental and theoretical information concerning the relevant processes is discussed. For atomic ions the principal electron–ion recombination process is radiative, with theory indicating that the two-body coefficient at ∼200 °K is ∼10−11 cm3/s and decreases with increasing electron temperature. Microwave afterglow/mass spectrometer studies of diatomic ionospheric ions (e.g. NO+, O2+, and N2+) show a loss by dissociative recombination with a coefficient substantially in excess of 10−7 cm3/s at 250 °K and decreasing with increasing electron and ion temperature. There is some evidence from flame studies that H3O+ ions exhibit a very large coefficient (10−6–10−5 cm3/s) at 300 °K. Ion–ion recombination evidently proceeds by mutual neutralization, with laboratory studies of ions such as NO+ and NO2− indicating a two-body coefficient of the order of 10−7 cm3/s at 300 °K. In the lower D region, three-body Thomson recombination may be important, since laboratory studies of "air" ions indicate a three-body coefficient of ∼2 × 10−25 cm6/s at 300 °K.

Prevalence of rapid dissociative recombination in absence of crossing of potentials

1993 ◽  
Vol 443 (1917) ◽  
pp. 257-264 ◽  
Keyword(s):  
Dissociative Recombination ◽  
Single Electron ◽  
Laboratory Studies ◽  
Radiationless Transition ◽  
Hydride Ion ◽  
Recombination Channel

For every species of polyatomic hydride ion on which the information is available from laboratory studies the recombination channel that leads to the release of an H atom is rapid. A single-electron radiationless transition is always involved. This precludes a crossing of the potentials. Rapid dissociative recombination without a crossing of potentials is thus common.

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