A ship-lock-type reactor for ion–molecule reactions of mass-selected ions under high-pressure conditions

2021 ◽  
Vol 92 (10) ◽  
pp. 104104
Author(s):  
Gong-Ping Wei ◽  
Qing-Yu Liu ◽  
Yi Ren ◽  
Sheng-Gui He
Keyword(s):  
High Pressure ◽  
Type Reactor ◽  
Ion Molecule Reactions ◽  
Ship Lock

High pressure investigations of ion – Molecule reactions in a mixture of C3H8 and Ne

Vacuum ◽  
2009 ◽  
Vol 83 ◽  
pp. S86-S90 ◽  
Author(s):  
Krzysztof Bederski ◽  
Monika Szymańska-Chargot
Keyword(s):  
High Pressure ◽  
Ion Molecule Reactions

CONCURRENT ION–MOLECULE REACTIONS LEADING TO THE SAME PRODUCTION

1962 ◽  
Vol 40 (10) ◽  
pp. 1986-1996 ◽  
Author(s):  
A. G. Harrison ◽  
J. M. S. Tait
Keyword(s):  
High Pressure ◽  
Mass Spectrum ◽  
Cross Sections ◽  
Reaction Cross ◽  
Ion Molecule Reactions ◽  
Secondary Ions ◽  
Primary Ions ◽  
Reaction Cross Sections

Seven of the major secondary ions in the high-pressure mass spectrum of cyclopropane have been studied. A method has been developed for studying concurrent ion–molecule reactions and it has been shown that four of the secondary ions are the products of more than one reaction. Cross sections for the separate reactions are reported. The appearance potentials of the major primary ions in the mass spectrum of cyclopropane have been measured.

Formation of C6H7+ ions in ion–molecule reactions in vinyl chloride

1991 ◽  
Vol 69 (12) ◽  
pp. 2038-2043 ◽  
Author(s):  
Jan A. Herman ◽  
Kazimiera Herman ◽  
Terry B. McMahon
Keyword(s):  
High Pressure ◽  
Fourier Transform ◽  
Vinyl Chloride ◽  
Cyclotron Resonance ◽  
Mass Spectra ◽  
Collision Induced Dissociation ◽  
Ion Cyclotron Resonance ◽  
Ion Molecule Reactions ◽  
Step Mechanism ◽  
Ft Icr

The formation of C6H7+ species in ion/molecule reactions in gaseous vinyl chloride was studied in a high pressure photoionization mass spectrometer and in a Fourier transform ion cyclotron resonance (FT-ICR) spectrometer. Collision-induced dissociation (CID) mass spectra of C4H5Cl+, C4H6Cl+, and C6H7+ species suggest a "butadiene-like" structure for the two former ions, and a non-benzenium structure for the last species. The C6H7+ ions are formed in a two-step mechanism involving C4H5+ as intermediate ions. These processes are in competition with condensation reactions leading to the formation of C6H7–9Cl+ species. Key words: ion–molecule reactions, gaseous vinyl chloride, collision-induced dissociation.

High pressure mass-spectrometric investigations of ion–molecule reactions in propane and argon mixtures

Vacuum ◽  
2013 ◽  
Vol 90 ◽  
pp. 114-120 ◽  
Author(s):  
Artur Markowski ◽  
Ewelina Szot ◽  
Leszek Wójcik
Keyword(s):  
High Pressure ◽  
Mass Spectrometric ◽  
Ion Molecule Reactions

Ion-molecule reactions of methyl fluoride and methylene chloride

1970 ◽  
Vol 23 (11) ◽  
pp. 2301 ◽  
Author(s):  
NA McAskill
Keyword(s):  
High Pressure ◽  
Gas Phase ◽  
Mass Spectrometer ◽  
Cross Sections ◽  
Main Product ◽  
Methylene Chloride ◽  
Reaction Cross ◽  
Rate Coefficients ◽  
Ion Molecule Reactions ◽  
Reaction Cross Sections

The ion-molecule reactions of CH3F and CH2Cl2 were examined in the gas phase using a high-pressure mass spectrometer. The ionic products of CH3F were mainly CH2F+, C2H6F+, and CH4F+. In the CH2Cl2 system the main product was CHCl2+ together with smaller amounts of CH2Cl+, CH3Cl2+, and several condensation ions. The ionic reactivity of the two compounds was compared to that of other halomethanes. Rate coefficients and reaction cross sections for many primary reactant ions were measured as a function of the ion exit energy.

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