Influence of Internal States on Ion-Molecule Reactions in a Temperature Variable 22-Pole Ion Trap. Spectroscopy and Reaction Kinetics

Language: English

Published by Cuvillier, Cuvillier Apr 2014, 2014

395404689X / 9783954046898

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Seller: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermanyBuchWeltWeit Ludwig Meier e.K.

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Softcover

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This item is printed on demand - it takes 3-4 days longer - Neuware -Chemical reactions between ions and neutral gas are very important in the interstellar medium, since they usually have much lower barriers than neutral-neutral reactions. Thus, they are more likely to take place at low temperatures. In this work, the endothermic reactions of CH2D+, H2D+, and N+ with H2 have been investigated in a temperature variable 22-pole ion trap. Under the chosen conditions inside the trap the chemical processes are comparable to those in typical astrophysical environments.At low temperatures, the reactions mentioned above depend very sensitively on the translational and internal energies of the reaction partners. This dependence can be utilized to gain information on the energy levels or the population of the internal states. Based on this sensitivity, two different types of investigations were performed in this work. High resolution spectra of CH2D+ were obtained, resulting in improved predictions for pure rotational transitions. First steps were made towards a detailed understanding of the processes in laser induced reactions, often leading to non-Gaussian line profiles. In addition, the influence of internal states on ion-molecule reactions allowed to determine the purity of para hydrogen samples and yielded insight into the reaction kinetics of the system N+ + H2. 202 pp. Englisch.…

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Title
Influence of Internal States on Ion-Molecule Reactions in a Temperature Variable 22-Pole Ion Trap. Spectroscopy and Reaction Kinetics
Author
Sabrina Gärtner
Publisher
Cuvillier, Cuvillier Apr 2014
Publication year
2014
Condition
Neu
Binding
Taschenbuch
Language
English
ISBN 10
395404689X
ISBN 13
9783954046898
Item weight
269 grams
Dimensions
210x148x12 mm

BuchWeltWeit Ludwig Meier e.K.

Bergisch Gladbach, Germany

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