Halogen activation and radical cycling initiated by imidazole-2-carboxaldehyde photochemistry

Corral Arroyo, Pablo; Aellig, Raffael; Alpert, Peter A.; Volkamer, Rainer; Ammann, Markus

doi:https://doi.org/10.5194/acp-19-10817-2019

Articles | Volume 19, issue 16

https://doi.org/10.5194/acp-19-10817-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-10817-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 16

Research article

|

27 Aug 2019

Research article |

| 27 Aug 2019

Halogen activation and radical cycling initiated by imidazole-2-carboxaldehyde photochemistry

Pablo Corral Arroyo, Raffael Aellig, Peter A. Alpert, Rainer Volkamer, and Markus Ammann

Download

Final revised paper (published on 27 Aug 2019)
Supplement to the final revised paper
Preprint (discussion started on 28 Mar 2019)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Good paper presenting another potential source of halogens', Anonymous Referee #1, 28 Mar 2019
- AC1: 'Response to reviewer 1', Markus Ammann, 02 Jul 2019
RC2: 'Review of "Halogen activation and radical cycling initiated by imidazole-2-carboxaldehyde photochemistry"', Anonymous Referee #2, 16 Apr 2019
- AC2: 'Response to reviewer 2', Markus Ammann, 02 Jul 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Markus Ammann on behalf of the Authors (11 Jul 2019) Author's response Manuscript

ED: Publish as is (22 Jul 2019) by Dwayne Heard

AR by Pablo Corral Arroyo on behalf of the Authors (30 Jul 2019) Manuscript

Download

Article (1125 KB)
Full-text XML

Short summary

Oxidation of bromide and iodide is an important process in the troposphere that leads to gas-phase halogen compounds which impact the oxidation capacity of the atmosphere. Imidazole-2-carboxaldehyde (IC), an aromatic carbonyl, is a product of the multiphase chemistry of glyoxal (an oxidation product of isoprene), a major biogenic volatile organic compound. In this study we demonstrate that IC photochemistry leads to efficient oxidation of bromide and iodide and liberation of halogen compounds.