TY  - JOUR
AU  - Keßel, Stephan
AU  - Cabrera-Perez, David
AU  - Horowitz, Abraham
AU  - Veres, Patrick R.
AU  - Sander, Rolf
AU  - Taraborrelli, Domenico
AU  - Tucceri, Maria
AU  - Crowley, John N.
AU  - Pozzer, Andrea
AU  - Stönner, Christof
AU  - Vereecken, Luc
AU  - Lelieveld, Jos
AU  - Williams, Jonathan
TI  - Atmospheric chemistry, sources and sinks of carbon suboxide, C3O2
JO  - Atmospheric chemistry and physics
VL  - 17
IS  - 14
SN  - 1680-7324
CY  - Katlenburg-Lindau
PB  - EGU
M1  - FZJ-2017-05009
SP  - 8789 - 8804
PY  - 2017
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000405864000001
DO  - DOI:10.5194/acp-17-8789-2017
UR  - https://juser.fz-juelich.de/record/835141
ER  -