Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (2): 20210591.doi: 10.7503/cjcu20210591

• Physical Chemistry • Previous Articles     Next Articles

Mechanism and Kinetics on the Reaction of Isopropyl Nitrate with Cl, OH and NO3 Radicals

SUN Cuihong1(), LYU Liqiang1, LIU Ying1, WANG Yan1, YANG Jing1, ZHANG Shaowen2()   

  1. 1.College of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035,China
    2.School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China
  • Received:2021-08-18 Online:2022-02-10 Published:2021-10-08
  • Contact: SUN Cuihong E-mail:schyjy@163.com;swzhang@bit.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21673018);the Program of the Department of Human Resources and Social Security of Hebei Province, China(A202001079);the Scientific Research Foundation for University of Hebei Province, China(Z2018015);the Technology Innovation Center of Hebei Province for Heterocyclic Compound, Shijiazhuang University, China(SG2021122)

Abstract:

The reaction mechanism of (CH32CHONO2 with X(X=Cl, OH and NO3 radical) was studied at M06-2X/ 6-311++G(dp) level of theory, and the energy of the stationary points was calculated by CCSD(T) method. The kinetics of the reaction was calculated by the conventional transition state theory. The hydrogen bonded complexes are formed firstly by isopropyl nitrate and X radical, and X radical can abstract the α-H or β-H atoms from (CH32CHONO2. The α-H abstraction is the main channel, and the main products are (CH32CO + NO2 + HCl(H2O or HNO3). The yield of α-H abstraction products decreases as the temperature increases from 200 K to 500 K for IPN + OH reaction. The overall rate constant for the reaction of (CH32CHONO2 with Cl atom, OH and NO3 radical at 300 K is 3.933×10-11, 1.182×10-13, and 7.134×10-19 cm3·molecule-1·s-1, respectively. The theoretical kinetics data is in consistent with the previous experimental values for the reaction of OH with isopropyl nitrate.

Key words: Isopropyl nitrate, Radical, Reaction mechanism, Kinetics

CLC Number: 

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