scholarly journals Guided ion beam measurement of the product branching ratios for the ion‐molecule reaction N++O2 as a function of collision energy

1994 ◽  
Vol 101 (5) ◽  
pp. 3763-3771 ◽  
Author(s):  
Robert D. Guettler ◽  
Glenn C. Jones ◽  
Lynmarie A. Posey ◽  
Nicholas J. Kirchner ◽  
Beat A. Keller ◽  
...  
Keyword(s):  
Collision Energy ◽  
Ion Beam ◽  
Branching Ratios ◽  
Guided Ion Beam ◽  
Molecule Reaction ◽  
Product Branching

Convergence Properties of Quasiclassical Trajectory Calculations on Dynamics of Autoionization Event in He(23S)-D2 Penning Ionization

1997 ◽  
Vol 62 (2) ◽  
pp. 154-171 ◽  
Author(s):  
Jan Vojtík ◽  
Richard Kotal
Keyword(s):  
Branching Ratios ◽  
Classical Trajectory ◽  
Vibrational States ◽  
Penning Ionization ◽  
Trajectory Calculations ◽  
Quantum Mechanical Treatment ◽  
Total Ionization ◽  
Vibrational Levels ◽  
Degree Of Convergence ◽  
Product Branching

An analysis of the degree of convergence of theoretical pictures of the dynamics of the autoionization event He(23S)-D2(v" = 0) -> [He...D2+(v')] + e is presented for a number of batches of Monte Carlo calculations differing in the number of the trajectories run. The treatment of the dynamics consists in 2D classical trajectory calculations based on static characteristics which include a quantum mechanical treatment of the perturbed D2(v" = 0) and D2+(v') vibrational motion. The vibrational populations are dynamical averages over the local widths of the He(23S)-D2(v" = 0) state with respect to autoionization to D2+(...He) in its v'th vibrational level and the Penning electron energies are related to the local differences between the energies of the corresponding perturbed D2(v" = 0)(...He*) and D2+(v')(...He) vibrational states. Special attention is paid to the connection between the requirements on the degree of convergence of the classical trajectory picture of the event and the purpose of the calculations. Information is obtained regarding a scale of the trajectory calculations required for physically sensible applications of the model to an interpretation of different type of experiments on the system: total ionization cross section measurements, Penning ionization electron spectra, subsequent 3D classical trajectory calculations of branching ratios of the products of the postionization collision process, and interpretation of electron ion coincidence measurements of the product branching ratios for individual vibrational levels of the nascent Penning ion.

Reactions of protonated water clusters H+(H2O)n (n=1–6) with dimethylsulfoxide in a guided ion beam apparatus

2003 ◽  
Vol 377 (1-2) ◽  
pp. 69-73 ◽  
Author(s):  
Yoko Kawai ◽  
Satoru Yamaguchi ◽  
Yoshiki Okada ◽  
Kazuo Takeuchi ◽  
Yusuke Yamauchi ◽  
...  
Keyword(s):  
Water Clusters ◽  
Ion Beam ◽  
Guided Ion Beam

Evaluation of the Pr + O → PrO+ + e− chemi-ionization reaction enthalpy and praseodymium oxide, carbide, dioxide, and carbonyl cation bond energies

2021 ◽  
Vol 23 (4) ◽  
pp. 2938-2952
Author(s):  
Maryam Ghiassee ◽  
Brandon C. Stevenson ◽  
P. B. Armentrout
Keyword(s):  
Cross Sections ◽  
Ion Beam ◽  
Bond Energies ◽  
Reaction Enthalpy ◽  
Praseodymium Oxide ◽  
Guided Ion Beam ◽  
Ionization Reaction ◽  
Lanthanide Metal ◽  
Energy Dependent ◽  
Dependent Product

Guided ion beam tandem mass spectrometry was used to measure the kinetic energy dependent product ion cross sections for reactions of the lanthanide metal praseodymium cation (Pr+) with O2, CO2, and CO and reactions of PrO+ with CO, O2, and Xe.

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