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@ARTICLE{Berasategui:889016,
      author       = {Berasategui, Matias and Amedro, Damien and Vereecken, Luc
                      and Lelieveld, Jos and Crowley, John N.},
      title        = {{R}eaction between ${CH}\<sub\>3\</sub\>{C}({O}){OOH}$
                      (peracetic acid) and {OH} in the gas phase: a combined
                      experimental and theoretical study of the kinetics and
                      mechanism},
      journal      = {Atmospheric chemistry and physics},
      volume       = {20},
      number       = {21},
      issn         = {1680-7324},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2020-05390},
      pages        = {13541 - 13555},
      year         = {2020},
      abstract     = {Peracetic acid (CH3C(O)OOH) is one of the mostabundant
                      organic peroxides in the atmosphere; yet the kinetics of
                      itsreaction with OH, believed to be the major sink, have
                      only been studied onceexperimentally. In this work we
                      combine a pulsed-laser photolysis kineticstudy of the title
                      reaction with theoretical calculations of the
                      ratecoefficient and mechanism. We demonstrate that the rate
                      coefficient isorders of magnitude lower than previously
                      determined, with an experimentallyderived upper limit of
                      4×10-14 cm3 molec.−1 s−1. The relatively low rate
                      coefficient is in good agreement withthe theoretical result
                      of 3×10-14 cm3 molec.−1 s−1 at 298 K,
                      increasing to ∼6×10-14 cm3 molec.−1 s−1 in the
                      cold uppertroposphere but with associated uncertainty of a
                      factor of 2. The reactionproceeds mainly via abstraction of
                      the peroxidic hydrogen via a relativelyweakly bonded and
                      short-lived prereaction complex, in which H
                      abstractionoccurs only slowly due to a high barrier and low
                      tunnelling probabilities.Our results imply that the lifetime
                      of CH3C(O)OOH with respect toOH-initiated degradation in the
                      atmosphere is of the order of 1 year (notdays as previously
                      believed) and that its major sink in the free and
                      uppertroposphere is likely to be photolysis, with deposition
                      important in theboundary layer.},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {243 - Tropospheric trace substances and their
                      transformation processes (POF3-243)},
      pid          = {G:(DE-HGF)POF3-243},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000589246000001},
      doi          = {10.5194/acp-20-13541-2020},
      url          = {https://juser.fz-juelich.de/record/889016},
}