Fragmentation of 1,4,5,8-tetraazaphenanthrenes upon electron impact: A new example of structural integrity of gas phase heteroaromatic cations

1985 ◽  
Vol 20 (12) ◽  
pp. 733-737
Author(s):  
Raymonde Nasielski-Hinkens ◽  
Michel Kaisin ◽  
Robert Flammang ◽  
André Maquestiau
Keyword(s):  
Gas Phase ◽  
Electron Impact ◽  
Structural Integrity

Mass spectral study ofO- andS-aryl dimethylthiocarbamates under electron impact conditions: Newman-Kwart rearrangement in the gas phase

2001 ◽  
Vol 15 (22) ◽  
pp. 2127-2134 ◽  
Author(s):  
S. Prabhakar ◽  
Paramita Kar ◽  
S. P. Mirza ◽  
V. V. S. Lakshmi ◽  
K. Nagaiah ◽  
...  
Keyword(s):  
Gas Phase ◽  
Electron Impact ◽  
Spectral Study ◽  
Mass Spectral ◽  
Mass Spectral Study

Quantitative gas phase analysis by means of electron impact spectrometry

1971 ◽  
Vol 43 (2) ◽  
pp. 162-171 ◽  
Author(s):  
Richard E. Grojean ◽  
John F. Rendina
Keyword(s):  
Gas Phase ◽  
Electron Impact ◽  
Phase Analysis

Mass Spectrometric Studies of Physical, Thermochemical and Reactive Properties of Xenon Fluorides, Xenon Oxides and Xenon Oxyfluorides

2002 ◽  
Vol 8 (3) ◽  
pp. 233-246 ◽  
Author(s):  
Vladislav V. Zelenov ◽  
Elena V. Aparina ◽  
Alexander V. Loboda ◽  
Alexander S. Kukui ◽  
Alexander F. Dodonov ◽  
...  
Keyword(s):  
Gas Phase ◽  
Electron Impact ◽  
Cross Sections ◽  
Impact Ionization ◽  
Saturated Vapor ◽  
Electron Impact Ionization ◽  
Binding Energies ◽  
Ionization Mass ◽  
Vapor Pressures ◽  
Gas Phase Reactions

Using a reactor with a flowing diffusion cloud coupled to a high-resolution, low-energy electron-impact ionization mass spectrometer, mechanistic, kinetic and thermochemical characteristics of gas-phase reactions with the participation of charged and neutral xenon oxides, xenon fluorides and xenon oxyfluorides have been investigated. Ionization energies for XeF, XeF2, XeF4, XeO3, XeO4, XeOF4 molecules and appearance energies for the ions formed from these molecules were obtained. Based on experimental and reference data, the enthalpies of XeO3 and XeOF4 formation were refined and a number of binding energies in the parent and fragment ions were calculated. For electron-impact ionization, the ionization cross-sections for Xe, XeF2, XeF4 and XeOF4 proved to correlate with a semi-empirical principle of full ionization. Based on the temperature dependencies of saturated vapor pressures for XeO4, XeOF4 and XeO2F2, their enthalpies of evaporation, sublimation and melting were determined. The mechanisms of gas-phase reactions between H atoms and neutral XeF2, XeF4, XeF6, XeO4 and XeOF4 were studied.

Electron impact excitation of gas-phase thymine molecules

2007 ◽  
Vol 102 (4) ◽  
pp. 500-502 ◽  
Author(s):  
I. I. Shafranyosh ◽  
M. I. Sukhoviya
Keyword(s):  
Gas Phase ◽  
Electron Impact ◽  
Impact Excitation ◽  
Electron Impact Excitation

Excitation of the gas-phase selenium by electron impact

2015 ◽  
Vol 69 (1) ◽  
Author(s):  
Mykola Erdevdy ◽  
Pavlo Markush ◽  
Otto Shpenik ◽  
Vitalij Zvenihorodsky
Keyword(s):  
Gas Phase ◽  
Electron Impact

Electron-impact ionization of sulfur in the gas phase

2014 ◽  
Vol 40 (1) ◽  
pp. 13-17 ◽  
Author(s):  
A. N. Zavilopulo ◽  
O. B. Shpenik ◽  
P. P. Markush ◽  
M. I. Mykyta
Keyword(s):  
Gas Phase ◽  
Electron Impact ◽  
Impact Ionization ◽  
Electron Impact Ionization
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