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@ARTICLE{Ehn:838782,
      author       = {Ehn, Mikael and Berndt, Torsten and Wildt, Jürgen and
                      Mentel, Thomas F.},
      title        = {{H}ighly {O}xygenated {M}olecules from {A}tmospheric
                      {A}utoxidation of {H}ydrocarbons: {A} {P}rominent
                      {C}hallenge for {C}hemical {K}inetic {S}tudies},
      journal      = {International journal of chemical kinetics},
      volume       = {49},
      number       = {11},
      issn         = {0538-8066},
      address      = {New York, NY},
      publisher    = {Wiley},
      reportid     = {FZJ-2017-07306},
      pages        = {821 - 831},
      year         = {2017},
      abstract     = {Recent advances in chemical ionization mass spectrometry
                      have allowed the detection of a new group of compounds
                      termed highly oxygenated molecules (HOM). These are
                      atmospheric oxidation products of volatile organic compounds
                      (VOC) retaining most of their carbon backbone, and with O/C
                      ratios around unity. Owing to their surprisingly high yields
                      and low vapor pressures, the importance of HOM for aerosol
                      formation has been easy to verify. However, the opposite can
                      be said concerning the exact formation pathways of HOM from
                      major aerosol precursor VOC. While the role of peroxy
                      radical autoxidation, i.e., consecutive intramolecular
                      H-shifts followed by O2 addition, has been recognized, the
                      detailed formation mechanisms remain highly uncertain. A
                      primary reason is that the autoxidation process occurs on
                      sub-second timescales and is extremely sensitive to
                      environmental conditions like gas composition, temperature,
                      and pressure. This, in turn, poses a great challenge for
                      chemical kinetics studies to be able to mimic the relevant
                      atmospheric reaction pathways, while simultaneously using
                      conditions suitable for studying the short-lived radical
                      intermediates. In this perspective, we define six specific
                      challenges for this community to directly observe the
                      initial steps of atmospherically relevant autoxidation
                      reactions and thereby facilitate vital improvements in the
                      understanding of VOC degradation and organic aerosol
                      formation.},
      cin          = {IEK-8},
      ddc          = {540},
      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:000411817300006},
      doi          = {10.1002/kin.21130},
      url          = {https://juser.fz-juelich.de/record/838782},
}