The Role of (H2O)1-2 in the CH2O + ClO Gas-Phase Reaction
AbstractMechanism and kinetic studies have been carried out to investigate whether one and two water molecules could play a possible catalytic role on the CH2O + ClO reaction. Density functional theory combined with the coupled cluster theory were employed to explore the potential energy surface and the thermodynamics of this radical-molecule reaction. The reaction proceeded through four different paths without water and eleven paths with water, producing H + HCO(O)Cl, Cl + HC(O)OH, HCOO + HCl, and HCO + HOCl. Results indicate that the formation of HCO + HOCl is predominant both in the water-free and water-involved cases. In the absence of water, all the reaction paths proceed through the formation of a transition state, while for some reactions in the presence of water, the products were directly formed via barrierless hydrogen transfer. The rate constant for the formation of HCO + HOCl without water is 2.6 × 10−16 cm3 molecule−1 s−1 at 298.15 K. This rate constant is decreased by 9−12 orders of magnitude in the presence of water. The current calculations hence demonstrate that the CH2O + ClO reaction is impeded by water. View Full-Text
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Li, J.; Tsona, N.T.; Du, L. The Role of (H2O)1-2 in the CH2O + ClO Gas-Phase Reaction. Molecules 2018, 23, 2240.
Li J, Tsona NT, Du L. The Role of (H2O)1-2 in the CH2O + ClO Gas-Phase Reaction. Molecules. 2018; 23(9):2240.Chicago/Turabian Style
Li, Junyao; Tsona, Narcisse T.; Du, Lin. 2018. "The Role of (H2O)1-2 in the CH2O + ClO Gas-Phase Reaction." Molecules 23, no. 9: 2240.
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