scholarly journals Molecular Weight Growth in the Gas-Phase Reactions of Dehydroanilinium Radical Cations with Propene

2019 ◽  
Vol 123 (41) ◽  
pp. 8881-8892 ◽  
Author(s):  
Patrick D. Kelly ◽  
Cameron C. Bright ◽  
Stephen J. Blanksby ◽  
Gabriel da Silva ◽  
Adam J. Trevitt
Keyword(s):  
Molecular Weight ◽  
Gas Phase ◽  
Radical Cations ◽  
Gas Phase Reactions ◽  
Weight Growth

Formation of Proton-Bound Dimers as the Driving Force for Alkyl Radical Loss in the Gas Phase Reactions of Radical Cations

1996 ◽  
Vol 100 (47) ◽  
pp. 18380-18386 ◽  
Author(s):  
Henri Edouard Audier ◽  
Jacques Fossey ◽  
Philippe Mourgues ◽  
Terrance B. McMahon ◽  
Steen Hammerum
Keyword(s):  
Gas Phase ◽  
Driving Force ◽  
Alkyl Radical ◽  
Radical Cations ◽  
Gas Phase Reactions

Reactivity Trends in the Gas Phase Addition of Acetylene to N-protonated Aryl Radical Cations

2020 ◽  
Author(s):  
Oisin Shiels ◽  
P. D. Kelly ◽  
Cameron C. Bright ◽  
Berwyck L. J. Poad ◽  
Stephen Blanksby ◽  
...  
Keyword(s):  
Gas Phase ◽  
Ion Trap ◽  
Radical Cations ◽  
Rate Coefficients ◽  
Similar Process ◽  
Ion Molecule Reactions ◽  
Aromatic Radicals ◽  
Polycyclic Aromatic ◽  
Gas Phase Ion ◽  
Type Radical

<div> <div> <div> <p>A key step in gas-phase polycyclic aromatic hydrocarbon (PAH) formation involves the addition of acetylene (or other alkyne) to σ-type aromatic radicals, with successive additions yielding more complex PAHs. A similar process can happen for N- containing aromatics. In cold diffuse environments, such as the interstellar medium, rates of radical addition may be enhanced when the σ-type radical is charged. This paper investigates the gas-phase ion-molecule reactions of acetylene with nine aromatic distonic σ-type radical cations derived from pyridinium (Pyr), anilinium (Anl) and benzonitrilium (Bzn) ions. Three isomers are studied in each case (radical sites at the ortho, meta and para positions). Using a room temperature ion trap, second-order rate coefficients, product branching ratios and reaction efficiencies are reported. </p> </div> </div> </div>

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