The Role of Long-Range Forces in the Determination of Translational Kinetic Energy Release. Loss of C4H4+from the Benzene and Pyridine Cations

2008 ◽  
Vol 112 (41) ◽  
pp. 10086-10095 ◽  
Author(s):  
E. Gridelet ◽  
R. Locht ◽  
A. J. Lorquet ◽  
J. C. Lorquet ◽  
B. Leyh
Keyword(s):  
Kinetic Energy ◽  
Energy Release ◽  
Long Range ◽  
Kinetic Energy Release

A method for calculating the shapes of peaks resulting from fragmentations of metastable ions in a mass spectrometer. II. Peak shapes arising from a distribution of kinetic energy releases: determination of distribution function

1980 ◽  
Vol 373 (1752) ◽  
pp. 13-25 ◽  
Keyword(s):  
Kinetic Energy ◽  
Energy Release ◽  
Preceding Paper ◽  
Kinetic Energy Release ◽  
Peak Shape ◽  
Doubly Charged Ions ◽  
Metastable Ions ◽  
Product Ions ◽  
Doubly Charged

Following the calculations described in the preceding paper (part I), which determine the MIKE peak shape arising from a discrete kinetic energy release, a method is presented for extending the calculations for the determination of the kinetic energy release distribution, n (T), from any experimental peak shape. This new approach has the advantage, compared to previous work, that the distribution can be obtained directly and does not involve any trial and error methods. It applies equally well where discrimination occurs against some of the product ions having components of velocity parallel to the length of the instrument slits. A variety of peak shapes have been investigated and several examples are given of the energy release distribution for various ionic reactions. Charge separation reactions of doubly-charged ions have been examined and in one case, the reaction 91 2+ -> 52 + in toluene, the energy release function exhibits fine structure, which has not previously been observed.

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