Collision induced dissociation of doubly-charged ions: Coulomb explosion vs. neutral loss in [Ca(urea)]2+ gas phase unimolecular reactivity via chemical dynamics simulations

2012 ◽  
Vol 14 (33) ◽  
pp. 11724 ◽  
Author(s):  
Riccardo Spezia ◽  
Alvaro Cimas ◽  
Marie-Pierre Gaigeot ◽  
Jean-Yves Salpin ◽  
Kihyung Song ◽  
...  
Keyword(s):  
Gas Phase ◽  
Neutral Loss ◽  
Coulomb Explosion ◽  
Collision Induced Dissociation ◽  
Chemical Dynamics ◽  
Doubly Charged Ions ◽  
Dynamics Simulations ◽  
Doubly Charged ◽  
Charged Ions

Differentiation of Ionised Benzimidazole from its Isomeric α-Distonic Ion by Collision-Induced Dissociation and Neutralisation—Reionisation Mass Spectrometry

2005 ◽  
Vol 11 (4) ◽  
pp. 381-387 ◽  
Author(s):  
Thanasis Karapanayiotis ◽  
Richard D. Bowen
Keyword(s):  
Mass Spectra ◽  
Radical Cations ◽  
Time Frame ◽  
Careful Consideration ◽  
Collision Induced Dissociation ◽  
Doubly Charged Ions ◽  
Doubly Charged ◽  
Ion Collision ◽  
Charged Ions ◽  
Distonic Ion

Ionised benzimidazole and its isomeric α-distonic ion (or ionised ylid) have been examined by recording their metastable ion, collision-induced dissociation and neutralisation–reionisation mass spectra. These tautomers may be distinguished by careful consideration of key features of the collision-induced dissociation spectra, with or without prior neutralisation and reionisation. Formation of doubly-charged ions by charge stripping occurs preferentially when the α-distonic ion is subjected to collision. This α-distonic ion survives neutralisation and reionisation, thus establishing that the corresponding ylid is stable on the microsecond time frame. The effects of benzannulation on the ease of differentiation of classical and distonic radical cations derived from biologically important heterocycles are considered.

scholarly journals A Study of Ion Kinetic Energy Spectrometry of Ferrocene Doubly Charged Ions in Gas Phase

1992 ◽  
Vol 8 (01) ◽  
pp. 117-122
Author(s):  
Fu Bing ◽  
◽  
Lin Chui ◽  
Huang Cheng-Yi ◽  
Liu Shu-Ying
Keyword(s):  
Kinetic Energy ◽  
Gas Phase ◽  
Doubly Charged Ions ◽  
Ion Kinetic Energy ◽  
Doubly Charged ◽  
Charged Ions

REACTIONS OF DOUBLY CHARGED IONS WITH VARIOUS NEUTRALS

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-21-C7-22
Author(s):  
K. Peska ◽  
E. Alge ◽  
H. Villinger ◽  
H. Störi ◽  
W. Lindinger
Keyword(s):  
Doubly Charged Ions ◽  
Doubly Charged ◽  
Charged Ions

Triatomic molecules

2018 ◽  
Author(s):  
John H. D. Eland ◽  
Raimund Feifel
Keyword(s):  
Degrees Of Freedom ◽  
Normal Modes ◽  
Electronic States ◽  
Triatomic Molecules ◽  
Doubly Charged Ions ◽  
Spectral Bands ◽  
Valence Electrons ◽  
Doubly Charged ◽  
Charged Ions ◽  
Double Ionisation

Double ionisation of the triatomic molecules presented in this chapter shows an added degree of complexity. Besides potentially having many more electrons, they have three vibrational degrees of freedom (three normal modes) instead of the single one in a diatomic molecule. For asymmetric and bent triatomic molecules multiple modes can be excited, so the spectral bands may be congested in all forms of electronic spectra, including double ionisation. Double photoionisation spectra of H2O, H2S, HCN, CO2, N2O, OCS, CS2, BrCN, ICN, HgCl2, NO2, and SO2 are presented with analysis to identify the electronic states of the doubly charged ions. The order of the molecules in this chapter is set first by the number of valence electrons, then by the molecular weight.

Doubly-charged ions in desorption mass spectrometry

1983 ◽  
Vol 55 (8) ◽  
pp. 1310-1313 ◽  
Author(s):  
David N. Heller ◽  
James. Yergey ◽  
Robert J. Cotter
Keyword(s):  
Mass Spectrometry ◽  
Desorption Mass Spectrometry ◽  
Doubly Charged Ions ◽  
Doubly Charged ◽  
Charged Ions
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