Abstract
Kinetics analysis of the idealized heavy hydrocarbon system comprising a reactant A1 = μ1H converting through a Rice–Herzfeld chain in the presence of a chain transfer solvent A2 = μ2H revealed the conditions and structural features of A2 for optimal rate enhancement E1 = rA1(A1, A2)/rA1(A1) = (1 + k̂Sθ)/(1 + k̂S), where k̂ = k12/k21 is the index of chain transfer and θ = k21/k11 is the index of the kinetic effect of chain transfer. Imposition of the Evans–Polanyi relationship for these two hydrogen-abstraction reactions rendered E1 as a function of the μ2–H bond strength x = dμ2Ho for a given reactant A1. Qualitatively, k̂ decreases and θ increases with increasing values of x. For low values of S, the intuitive optimum is where the balance between these two dependencies is found. For higher values of S, the optimal value of x is defined by the condition dθ/(θ – 1) = dk̂S/(k̂S(1 + k̂S)).
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.
