Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.414
IF5.414
IF 5-year value: 5.958
IF 5-year
5.958
CiteScore value: 9.7
CiteScore
9.7
SNIP value: 1.517
SNIP1.517
IPP value: 5.61
IPP5.61
SJR value: 2.601
SJR2.601
Scimago H <br class='widget-line-break'>index value: 191
Scimago H
index
191
h5-index value: 89
h5-index89
Preprints
https://doi.org/10.5194/acp-2020-484
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2020-484
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  10 Jun 2020

10 Jun 2020

Review status
A revised version of this preprint was accepted for the journal ACP and is expected to appear here in due course.

Kinetics of dimethyl sulfide (DMS) reactions with isoprene-derived Criegee intermediates studied with direct UV absorption

Mei-Tsan Kuo1, Isabelle Weber2,a, Christa Fittschen2, Luc Vereecken3,4, and Jim Jr-Min Lin1,5 Mei-Tsan Kuo et al.
  • 1Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
  • 2Univ. Lille, CNRS, UMR 8522 – PC2A – Physicochimie des Processus de Combustion et de l'Atmosphère, F-59000 Lille, France
  • 3Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany
  • 4Institute for Energy and Climate Research, IEK-8: Troposphere, Forschungszentrum Jülich GmbH, 52428 Jülich, Germany
  • 5Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
  • apresent address: Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan

Abstract. Criegee intermediates (CIs) are formed in the ozonolysis of unsaturated hydrocarbons and play a role in atmospheric chemistry as a non-photolytic OH source or a strong oxidant. Using a relative rate method in an ozonolysis experiment, Newland et al. (2015) reported high reactivity of isoprene-derived Criegee intermediates towards dimethyl sulfide (DMS) relative to that towards SO2 with the ratio of the rate coefficients kDMS+CI/kSO2+CI = 3.5 ± 1.8. Here we reinvestigated the kinetics of DMS reactions with two major Criegee intermediates formed in isoprene ozonolysis, CH2OO and methyl vinyl ketone oxide (MVKO). The individual CI was prepared following reported photolytic method with suitable (diiodo) precursors in the presence of O2. The concentration of CH2OO or MVKO was monitored directly in real time through their intense UV-visible absorption. Our results indicate the reactions of DMS with CH2OO and MVKO are both very slow; the upper limits of the rate coefficients are 4 orders of magnitude smaller than that reported by Newland et al. These results suggest that the ozonolysis experiment could be complicated such that interpretation should be careful and these CIs would not oxidize atmospheric DMS at any substantial level.

Mei-Tsan Kuo et al.

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Mei-Tsan Kuo et al.

Mei-Tsan Kuo et al.

Viewed

Total article views: 301 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
218 59 24 301 26 9 10
  • HTML: 218
  • PDF: 59
  • XML: 24
  • Total: 301
  • Supplement: 26
  • BibTeX: 9
  • EndNote: 10
Views and downloads (calculated since 10 Jun 2020)
Cumulative views and downloads (calculated since 10 Jun 2020)

Viewed (geographical distribution)

Total article views: 318 (including HTML, PDF, and XML) Thereof 317 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 29 Sep 2020
Publications Copernicus
Download
Short summary
Dimethyl sulfide (DMS) is the major sulfur-containing species in the troposphere. Previous work by Newland et al. (2015) reported very high reactivity of isoprene-derived Criegee intermediates (CIs) towards DMS. By monitoring CIs with direct UV absorption, we found CI + DMS reactions are very slow, in contrast to the results of Newland et al., suggesting these CIs would not oxidize atmospheric DMS at any substantial level.
Dimethyl sulfide (DMS) is the major sulfur-containing species in the troposphere. Previous work...
Citation
Altmetrics