Abstract
We present a temperature dependence study on the gas phase reactions of the C2(a ∏3u) radical with a selected series of saturated alkanes (C2H6, C3H8, n-C4H10, i-C4H10, and n-C6H14) by means of pulsed laser photolysis/laser-induced fluorescence technique. The bimolecular rate constants for these reactions were obtained between 298 and 673 K. A pronounced negative temperature effect was observed for n-C4H10, i-C4H10, and n-C6H14 and interpreted in terms of steric hindrance of the more reactive secondary or tertiary C–H bonds by less reactive CH3 groups. Detailed analysis of our experimental results reveals quantitatively the temperature dependence of reactivities for the primary, secondary, and tertiary C–H bonds in these saturated alkanes and further lends support to a mechanism of hydrogen abstraction.
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.
