Mass spectrometric study of thermal decomposition of oxalyl chloride at low pressures

1983 ◽  
Vol 32 (4) ◽  
pp. 722-725
Author(s):  
V. N. Khabashesku ◽  
B. P�d�r ◽  
T. Sz�kely ◽  
A. K. Mal'tsev ◽  
O. M. Nefedov
Keyword(s):  
Thermal Decomposition ◽  
Oxalyl Chloride ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study ◽  
Low Pressures

Mass-spectrometric study of thermal decomposition of diethylzinc and diethyltellurium

1992 ◽  
Vol 2 (9) ◽  
pp. 923-930 ◽  
Author(s):  
Hervé Dumont ◽  
Alain Marbeuf ◽  
Jean Eric Bourée ◽  
Ouri Gorochov
Keyword(s):  
Thermal Decomposition ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study

THE MERCURY-SENSITIZED PRIMARY DECOMPOSITION OF DEUTERATED PROPANES: A MASS SPECTROMETRIC STUDY AT LOW PRESSURES: PART II

1963 ◽  
Vol 41 (2) ◽  
pp. 347-354 ◽  
Author(s):  
M. Avrahami ◽  
P. Kebarle
Keyword(s):  
Isotope Effect ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Primary Decomposition ◽  
Spectrometric Study ◽  
Deuterium Substitution ◽  
Primary Reactions ◽  
Low Pressures

The primary decomposition of C3H8, CD3CH2CD3, CH3CD2CH3, and C3D8 was found equal to: 10, 8, 5.5, and 5%.The primary reactions were[Formula: see text]The ratio a/b was strongly affected by deuterium substitution. The numerical values of the ratio for the compounds in the order given above are: 1.2, 6.8, 0.2, 0.9. Elucidation of the underlying reasons for this surprisingly large isotope effect might throw new light on the excited mercury – paraffin interaction.

THE MERCURY-PHOTOSENSITIZED DECOMPOSITION OF PROPANE: A MASS SPECTROMETRIC STUDY AT LOW PRESSURES: PART I

1963 ◽  
Vol 41 (2) ◽  
pp. 335-346 ◽  
Author(s):  
P. Kebarle ◽  
M. Avrahami
Keyword(s):  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Main Reaction ◽  
Primary Decomposition ◽  
Spectrometric Study ◽  
Hydrogen Atoms ◽  
Theoretical Predictions ◽  
Secondary Reactions ◽  
Cracking Reaction ◽  
Low Pressures

It is found that the primary decomposition involves the cleavage of a C—H bond. Both primary and secondary hydrogen atoms are lost. The relative rates of the two processes could not be determined accurately but are estimated to be approximately 1:1. It is found that at least 70% of the secondary reactions involves the interaction of hydrogen atom with a propyl radical. The main reaction is the re-formation of propane. An important disproportionation of hydrogen atoms with propyl radicals leading to propylene is shown to occur. The atomic cracking reaction H + C3H7 → C3H8* → C2H5 + CH3 is also observed. Using mixtures of C3H8 and C3D8 the relative cracking rate of n-propyl- to isopropyl-derived propane is determined to be equal to 5. This result is compared with theoretical predictions.

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