Reactivity Trends in the Gas-Phase Addition of Acetylene to the N-Protonated Aryl Radical Cations of Pyridine, Aniline, and Benzonitrile

2021 ◽  
Vol 32 (2) ◽  
pp. 537-547
Author(s):  
Oisin J. Shiels ◽  
P. D. Kelly ◽  
Cameron C. Bright ◽  
Berwyck L. J. Poad ◽  
Stephen J. Blanksby ◽  
...  
Keyword(s):  
Gas Phase ◽  
Radical Cations ◽  
Aryl Radical

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>

Size-Dependent Hydrogen Atom Attachment to Gas-Phase Hydrogen-Deficient Polypeptide Radical Cations

2018 ◽  
Vol 140 (2) ◽  
pp. 531-533 ◽  
Author(s):  
Luciano H. Di Stefano ◽  
Dimitris Papanastasiou ◽  
Roman A. Zubarev
Keyword(s):  
Hydrogen Atom ◽  
Gas Phase ◽  
Radical Cations ◽  
Size Dependent

ChemInform Abstract: GAS-PHASE ION-MOLECULE NITRATION CHEMISTRY: THE NITRATION OF AROMATIC RADICAL CATIONS BY NITROGEN DIOXIDE

1984 ◽  
Vol 15 (21) ◽  
Author(s):  
R. J. SCHMITT ◽  
S. E. JUN. BUTTRILL ◽  
D. S. ROSS
Keyword(s):  
Nitrogen Dioxide ◽  
Gas Phase ◽  
Radical Cations ◽  
Aromatic Radical ◽  
Gas Phase Ion

ChemInform Abstract: LASER-INDUCED FLUORESCENCE FROM FLUOROBENZENE RADICAL CATIONS IN THE GAS PHASE

1979 ◽  
Vol 10 (16) ◽  
Author(s):  
V. E. BONDYBEY ◽  
T. A. MILLER
Keyword(s):  
Gas Phase ◽  
Radical Cations ◽  
Laser Induced Fluorescence

scholarly journals Gas phase substitution of halobenzenes by methylamine and dimethylamine via radical cations

1992 ◽  
Vol 117 ◽  
pp. 415-440 ◽  
Author(s):  
Detlef Thölmann ◽  
Hans-Friedrich Grützmacher
Keyword(s):  
Gas Phase ◽  
Radical Cations
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