Fluorine atoms, thermal abstraction

No thermal reactions were observed at temperatures up to 350 °C. and there was no evidence for the abstraction of fluorine atoms. 

Limitations of the Moderated Nuclear Recoil Technique for Investigating Thermal Hydrogen Abstraction Reactions by Atomic Fluorine... 

Table VII. Absolute Rate Constants for Selected Thermal Hydrogen Abstraction and Olefinic Addition Reactions by Atomic Fluorine"...

A comprehensive listing of absolute thermal rate coefficients for hydrogen abstraction and olefinic addition reactions by atomic fluorine has been given in Table X. 

The measured terminal to central ratio of 1.4 contrasts sharply with the ratio of about 15 found for the thermal hydrogen atom addition to propylene (38). The value of 1.4 indicates only a moderate preference for reaction at the CH2 end of propylene, indicating that atomic fluorine is a rather indiscriminate, highly reactive species. Both the F recoil and N2F4 Aotolysis e 5)eriments show substantial H atom abstraction from propylene... 

In the present work we have sought to resolve this discrepancy based upon new experimental results and to provide a critique of the nuclear recoil technique for the investigation of thermal hydrogen abstraction reactions by atomic fluorine. 

Tatle Absolute Rate Constants for 300 K Thermal Hydrogen Abstraction Reactions hy Atomic Fluorine. 

Table XII. Arrhenius Parameters For Thermal Hydrogen Abstraction And Olefin Addition Reactions By Atomic Fluorine.

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