Theoretical study on the reaction mechanism of OH radical with Z(E)-CF3CHCHF

Literature Information

Publication Date 2018-12-12
DOI 10.1039/C8CP06647G
Impact Factor 3.676
Authors

Chao Xu, Chaoyang Wang, Bo Li, Linping Hu, Feng Long Gu


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Abstract

Understanding the atmospheric fate of hydrofluoroolefins (HFOs) is of great significance to assess their potential risk to the environment. As an important type of HFO, the comprehensive transformation mechanism and kinetics of Z(E)-CF3CHCHF initiated by OH radicals were investigated by performing quantum chemical calculations at the CCSD(T)/aug-cc-pVTZ//MP2/cc-pVDZ level. The results show that the OH-addition pathways are the most favorable for the title reaction. The rate constants are obtained by transition state theory with Wigner tunneling correction (TST/W). The calculated total rate constants are in good agreement with the experimental data. At 298 K, the computed rate constant and lifetime of Z(E)-CF3CHCHF are 9.66 × 10−13 (4.02 × 10−13) cm3 molecule−1 s−1 and 12.3 (29.7) days, respectively, which demonstrates that Z(E)-CF3CHCHF is atmospherically persistent.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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