Identification of the sulfoxide functionality in protonated analytes via ion/molecule reactions in linear quadrupole ion trap mass spectrometry

The Analyst ◽  
2014 ◽  
Vol 139 (17) ◽  
pp. 4296-4302 ◽  
Author(s):  
Huaming Sheng ◽  
Peggy E. Williams ◽  
Weijuan Tang ◽  
Minli Zhang ◽  
Hilkka I. Kenttämaa
Keyword(s):  
Gas Phase ◽  
Ion Trap ◽  
Quadrupole Ion Trap ◽  
Mass Spectrometric ◽  
Spectrometric Method ◽  
Ion Trap Mass Spectrometry ◽  
Mass Spectrometric Method ◽  
Ion Molecule Reactions ◽  
Linear Quadrupole Ion Trap ◽  
Gas Phase Ion

A mass spectrometric method utilizing gas-phase ion/molecule reactions of 2-methoxypropene (MOP) has been developed for the identification of the sulfoxide functionality in protonated analytes in a LQIT mass spectrometer.

Enantioselective gas-phase ion–molecule reactions in a quadrupole ion trap

2002 ◽  
Vol 219 (1) ◽  
pp. 79-87 ◽  
Author(s):  
Gabriela Grigorean ◽  
Scott Gronert ◽  
Carlito B. Lebrilla
Keyword(s):  
Gas Phase ◽  
Ion Trap ◽  
Quadrupole Ion Trap ◽  
Ion Molecule Reactions ◽  
Gas Phase Ion

Gas phase ion-molecule reactions in mixtures of silicon and germanium hydrides by ion trap mass spectrometry

1993 ◽  
Vol 12 (11) ◽  
pp. 4516-4522 ◽  
Author(s):  
Lorenza Operti ◽  
Maurizio Splendore ◽  
Gian Angelo Vaglio ◽  
Paolo Volpe
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Ion Trap ◽  
Ion Trap Mass Spectrometry ◽  
Ion Molecule Reactions ◽  
Silicon And Germanium ◽  
Gas Phase Ion

Gas phase ion-molecule reactions of methylsilane and methylgermane by ion trap mass spectrometry

1993 ◽  
Vol 12 (11) ◽  
pp. 4509-4515 ◽  
Author(s):  
Lorenza Operti ◽  
Maurizio Splendore ◽  
Gian Angelo Vaglio ◽  
Paolo Volpe
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Ion Trap ◽  
Ion Trap Mass Spectrometry ◽  
Ion Molecule Reactions ◽  
Gas Phase Ion

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>

scholarly journals Formation and reactions of the 1, 8-naphthyridine (napy) ligated geminally dimetallated phenyl complexes [(napy)Cu2(Ph)]+, [(napy)Ag2(Ph)]+ and [(napy)CuAg(Ph)]+

2019 ◽  
Vol 25 (1) ◽  
pp. 30-43 ◽  
Author(s):  
Qiuyan Jin ◽  
Jiaye Li ◽  
Alireza Ariafard ◽  
Allan J Canty ◽  
Richard AJ O’Hair
Keyword(s):  
Density Functional Theory ◽  
Gas Phase ◽  
Density Functional ◽  
Ion Trap ◽  
Density Functional Theory Calculations ◽  
Collision Induced Dissociation ◽  
Ion Trap Mass Spectrometry ◽  
Functional Theory ◽  
Organometallic Cations ◽  
Gas Phase Ion

Gas-phase ion trap mass spectrometry experiments and density functional theory calculations have been used to examine the routes to the formation of the 1,8-naphthyridine (napy) ligated geminally dimetallated phenyl complexes [(napy)Cu2(Ph)]+, [(napy)Ag2(Ph)]+ and [(napy)CuAg(Ph)]+ via extrusion of CO2 or SO2 under collision-induced dissociation conditions from their corresponding precursor complexes [(napy)Cu2(O2CPh)]+, [(napy)Ag2(O2CPh)]+, [(napy)CuAg(O2CPh)]+ and [(napy)Cu2(O2SPh)]+, [(napy)Ag2(O2SPh)]+, [(napy)CuAg(O2SPh)]+. Desulfination was found to be more facile than decarboxylation. Density functional theory calculations reveal that extrusion proceeds via two transition states: TS1 enables isomerization of the O, O-bridged benzoate to its O-bound form; TS2 involves extrusion of CO2 or SO2 with the concomitant formation of the organometallic cation and has the highest barrier. Of all the organometallic cations, only [(napy)Cu2(Ph)]+ reacts with water via hydrolysis to give [(napy)Cu2(OH)]+, consistent with density functional theory calculations which show that hydrolysis proceeds via the initial formation of the adduct [(napy)Cu2(Ph)(H2O)]+ which then proceeds via TS3 in which the coordinated H2O is deprotonated by the coordinated phenyl anion to give the product complex [(napy)Cu2(OH)(C6H6)]+, which then loses benzene.

Ion-molecule reactions in quadrupole ion trap mass spectrometry: implications for lightweight gas analysis

2005 ◽  
Vol 243 (1) ◽  
pp. 31-39 ◽  
Author(s):  
Andrew K. Ottens ◽  
C. Richard Arkin ◽  
Timothy P. Griffin ◽  
Peter T. Palmer ◽  
W.W. Harrison
Keyword(s):  
Mass Spectrometry ◽  
Ion Trap ◽  
Quadrupole Ion Trap ◽  
Gas Analysis ◽  
Ion Trap Mass Spectrometry ◽  
Ion Molecule Reactions
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