Abstract
Abstract Reaction mechanism of pyrolysis of toluene was studied with toluene-d5 of high isotopic purity. The rate constant of pyrolysis of toluene-d5 in gas phase was determined to be k=1011.5±0.3×exp(−70±1 kcal/mol) (sec−1) and compared with that of toluene. Hydrogen isotope mixtures produced in the pyrolysis of toluene-d5 were collected and analyzed by mass spectrometer. Formation of some amount of D2 is confirmed, and it is concluded that the fission of ring C–D bond is involved to some extent in the pyrolytic reaction of toluene-d5 at high reaction temperatures. The ratio of rate constants of abstraction type (kD–H⁄kH–H) is also determined, and the difference of the activation energies between kD–H and kH–H is found to be approximately 14 kcal/mol.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
