Title :

The absorption spectrum and absolute absorption cross sections of acetylperoxy radicals, CH3C(O)O2 in the near IR

Author(s) :

Rolletter, Michael [Auteur]
Institut für Energie- und Klimaforschung - Troposphäre [IEK-8]
Assaf, Emmanuel [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Assali, Mohamed [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Fuchs, Hendrik [Auteur]
Institut für Energie- und Klimaforschung - Troposphäre [IEK-8]
Fittschen, Christa [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]

Journal title :

Journal of Quantitative Spectroscopy and Radiative Transfer

Abbreviated title :

Journal of Quantitative Spectroscopy and Radiative Transfer

Volume number :

245

Publisher :

Elsevier BV

Publication date :

2020-04

ISSN :

0022-4073

HAL domain(s) :

Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Chimie/Chimie théorique et/ou physique

English abstract : [en]

The Ã- electronic transition of acetylperoxy radicals (CH3C(O)O2) in the near-infrared was measured at 67hPa synthetic air in the spectral ranges from 6094 cm−1 to 6180 cm−1 and 6420 cm−1 to 6600 cm−1. CH3C(O)O2 radicals ...
Show more >The Ã- electronic transition of acetylperoxy radicals (CH3C(O)O2) in the near-infrared was measured at 67hPa synthetic air in the spectral ranges from 6094 cm−1 to 6180 cm−1 and 6420 cm−1 to 6600 cm−1. CH3C(O)O2 radicals were generated by the pulsed photolysis of a acetaldehyde/Cl2/O2 mixture at 351 nm and subsequently measured by time-resolved continuous-wave cavity ring-down spectroscopy (cw-CRDS). The absorption cross sections of eight discrete absorption lines were determined relative to the absorption cross section of HO2, which has previously been reported. The strongest absorption cross section was found at 6510.73 cm−1 and was determined to be (4.9 ± 2.5) × 10−20 cm2.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Non spécifiée

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522

Research team(s) :

PhysicoChimie de l'Atmosphère (PCA)

Submission date :

2020-10-07T13:43:00Z
2020-10-08T07:03:19Z