Photoionization mass spectrometry and heat of formation of S2O

1977 ◽  
Vol 66 (5) ◽  
pp. 2183-2186 ◽  
Author(s):  
J. Berkowitz ◽  
J. H. D. Eland ◽  
E. H. Appelman
Keyword(s):  
Mass Spectrometry ◽  
Heat Of Formation ◽  
Photoionization Mass Spectrometry

Heat of Formation for the Benzoyl Cation by Photoionization Mass Spectrometry

2009 ◽  
Vol 15 (2) ◽  
pp. 183-188 ◽  
Author(s):  
John C. Traeger
Keyword(s):  
Mass Spectrometry ◽  
Ab Initio Calculations ◽  
Ab Initio ◽  
Heat Of Formation ◽  
Experimental Results ◽  
Photoionization Mass Spectrometry ◽  
Dissociative Photoionization ◽  
High Level

Dissociative photoionization mass spectrometry has been used to measure the PhCO+ appearance energies for several benzoyl compounds. Based on these threshold measurements, an experimental 298 K heat of formation of 738.8 ± 3.3 kJ mol−1 is obtained for the benzoyl cation. The experimental results are supported by high-level ab initio calculations.

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