scholarly journals I. State-selected study of ion-molecule reactions using tandem molecular beam photoionization mass spectrometry; II. Absolute spin-orbit-state excitation cross sections for the reactions Ar+(2P3/2 ) + Ar(1S0) and Ar+(2P3/2) + N2(X~, v=0)

1986 ◽  
Author(s):  
Jian-dong Shao
Keyword(s):  
Mass Spectrometry ◽  
Cross Sections ◽  
Molecular Beam ◽  
Spin Orbit ◽  
Photoionization Mass Spectrometry ◽  
Ion Molecule Reactions ◽  
Excitation Cross Sections

Quantum-state-selected integral cross sections for the charge transfer collision of O2+(a4Πu5/2,3/2,1/2,−1/2: v+= 1–2; J+) [O2+(X2Πg3/2,1/2: v+= 22–23; J+)] + Ar at center-of-mass collision energies of 0.05–10.00 eV

2017 ◽  
Vol 19 (43) ◽  
pp. 29057-29067 ◽  
Author(s):  
Bo Xiong ◽  
Yih-Chung Chang ◽  
Cheuk-Yiu Ng
Keyword(s):  
Charge Transfer ◽  
Quantum State ◽  
Cross Sections ◽  
Center Of Mass ◽  
Spin Orbit ◽  
Ion Molecule Reactions

Study of spin–orbit and rovibronically selected ion-molecule reactions between O2+(a4Πu,ν+= 1–2; X2Πg,ν+= 22–23) and Ar.

Ion–molecule reactions in dimethylsulfoxide by high pressure photoionization mass spectrometry

1980 ◽  
Vol 58 (4) ◽  
pp. 376-380 ◽  
Author(s):  
John A. Stone ◽  
Margaret S. Lin
Keyword(s):  
Mass Spectrometry ◽  
High Pressure ◽  
Photon Energy ◽  
Rate Constant ◽  
Pressure Range ◽  
Low Pressure ◽  
Photoionization Mass Spectrometry ◽  
Ion Molecule Reactions

Dimethylsulfoxide (DMSO) has been photoionized at 10.0 and 11.7 eV over the pressure range 0.3–210 mTorr. The rate constant for the disappearance of DMSO+ is 1.0 × 10−9 cm3 molecule−1 s−1, independent of photon energy. The major products at low pressure are CH3SO(CH3SO)CH3+ and CH3SOHCH3+ while at high pressure the ion series (DMSO)nH+ predominates with n ≤ 5. In experiments with mixtures of DMSO and water or methanol very little mixed solvation of the proton was observed although isotopic D/H exchange between D2O and (DMSO)2H+ is facile.

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