Related Experiment Video
Updated: Mar 3, 2026

Light-driven Enzymatic Decarboxylation
Published on: May 22, 2016
Kinetics Study of the Reactions of OH with n-Undecane and n-Dodecane Using the RR/DF/MS Technique
1Department of Chemistry and Biochemistry, California State University-Fullerton , Fullerton, California 92834, United States.
Abstract:
The kinetics of the reactions of hydroxyl radical with n-undecane (n-C11H24) and n-dodecane (n-C12H26) has been studied at 240-340 K and a total pressure of 1 Torr using the relative rate/discharge flow/mass spectrometry (RR/DF/MS) technique. The rate constants at 298 K for these reactions were determined to be kn-undecane+OH = (1.59 ± 0.24) × 10-11 cm3 molecule-1 s-1 and kn-dodecane+OH = (1.83 ± 0.26) × 10-11 cm3 molecule-1 s-1, respectively. The rate constants of these reactions were found to positively dependent on temperature at 277-340 K, and negatively dependent on temperature at 240-277 K. The atmospheric lifetime of these compounds are estimated to be 25.8 and 19.8 h for n-undecane and n-dodecane, respectively, based the kinetics results in the present study.
Related Concept Videos
SN2 Reaction: Kinetics
In a chemical reaction, a relationship exists between the concentration of reactants and the rate at which the reaction proceeds. The study to measure this relationship is known as the kinetics of a chemical reaction. Kinetic studies are used to deduce the rate law of a chemical reaction, which provides information about the species involved during the transition state of the rate-determining step. Thus, kinetic studies help to derive the mechanism of a...
Mass Spectrometry: Branched Alkane Fragmentation
¹H NMR of Conformationally Flexible Molecules: Temporal Resolution
E2 Reaction: Kinetics and Mechanism
E1 Reaction: Kinetics and Mechanism
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...

