Journal
CHEMICAL PHYSICS LETTERS
Volume 699, Issue -, Pages 40-47Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2018.03.032
Keywords
1-Chloronaphthalene; OH radicals; Atmospheric oxidation; Reaction mechanism; Rate constants
Funding
- NSFC (National Natural Science Foundation of China) [21337001, 21477066]
- Independent Innovation Foundation of Shandong University (IIFSDU) [2017JC033]
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OH-initiated atmospheric oxidation mechanism of 1-chloronaphthalene (1-CN) was investigated using density functional theory (DFT) calculations. The oxidation is predicted to be initiated by OH addition to the a-positions, and the additions to C4 and C5 are more favorable. 1-CN-OH adducts tend to react with ambient O-2 to produce peroxy intermediates, followed by intramolecular H-shifts producing C10H7OCl and diketone or unimolecular ring closure forming methyl glyoxal and Cl-substituted phthalaldialde-hyde. Despite that the rate constants are influenced by the tunneling factors, intramolecular H-shift reactions are suggested to be more favorable. The OH-determined lifetime of 1-CN is 0.62 days. (C) 2018 Elsevier B.V. All rights reserved.
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