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Keßel, Stephan [Author]; Cabrera-Perez, David [Author]; Vereecken, Luc [Author]; Lelieveld, Jos [Author]; Williams, Jonathan [Author]; Horowitz, Abraham [Author]; Veres, Patrick R. [Author]; Sander, Rolf [Author]; Taraborrelli, Domenico [Author]; Tucceri, Maria [Author]; Crowley, John N. [Author]; Pozzer, Andrea [Author]; Stönner, Christof [Author]

Atmospheric chemistry, sources and sinks of carbon suboxide, C3O2

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  • Media type: E-Article
  • Title: Atmospheric chemistry, sources and sinks of carbon suboxide, C3O2
  • Contributor: Keßel, Stephan [Author]; Cabrera-Perez, David [Author]; Vereecken, Luc [Author]; Lelieveld, Jos [Author]; Williams, Jonathan [Author]; Horowitz, Abraham [Author]; Veres, Patrick R. [Author]; Sander, Rolf [Author]; Taraborrelli, Domenico [Author]; Tucceri, Maria [Author]; Crowley, John N. [Author]; Pozzer, Andrea [Author]; Stönner, Christof [Author]
  • Published: EGU, 2017
  • Published in: Atmospheric chemistry and physics 17(14), 8789 - 8804 (2017). doi:10.5194/acp-17-8789-2017
  • Language: English
  • DOI: https://doi.org/10.5194/acp-17-8789-2017
  • ISSN: 1680-7324; 1680-7316
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: Carbon suboxide, O = C = C = C = O, has been detected in ambient air samples and has the potential to be a noxious pollutant and oxidant precursor; however, its lifetime and fate in the atmosphere are largely unknown. In this work, we collect an extensive set of studies on the atmospheric chemistry of C3O2. Rate coefficients for the reactions of C3O2 with OH radicals and ozone were determined as kOH = (2.6 ± 0.5) × 10−12 cm3 molecule−1 s−1 at 295 K (independent of pressure between ∼ 25 and 1000 mbar) and kO3 < 1.5 × 10−21 cm3 molecule−1 s−1 at 295 K. A theoretical study on the mechanisms of these reactions indicates that the sole products are CO and CO2, as observed experimentally. The UV absorption spectrum and the interaction of C3O2 with water (Henry's law solubility and hydrolysis rate constant) were also investigated, enabling its photodissociation lifetime and hydrolysis rates, respectively, to be assessed.
  • Access State: Open Access