Volume 36, Issue 10 e4555
RESEARCH ARTICLE

Theoretical and experimental study of the OH radical with 3-bromopropene gas phase reaction rate coefficients temperature dependence

Mauro González Vera

Mauro González Vera

CONICET, Instituto de Altos Estudios Espaciales “Mario Gulich”, UNC-CONAE, Falda del Cañete, Córdoba, Argentina

Search for more papers by this author
Pablo Marcelo Cometto

Corresponding Author

Pablo Marcelo Cometto

CONICET, Instituto de Altos Estudios Espaciales “Mario Gulich”, UNC-CONAE, Falda del Cañete, Córdoba, Argentina

Correspondence

Pablo Marcelo Cometto, CONICET, Instituto de Altos Estudios Espaciales “Mario Gulich”, UNC-CONAE, Falda del Cañete, Ruta provincial 45 km 8, Córdoba, Argentina.

Email: [email protected]

Search for more papers by this author
Juan Manuel Casañas

Juan Manuel Casañas

CONICET, Instituto de Altos Estudios Espaciales “Mario Gulich”, UNC-CONAE, Falda del Cañete, Córdoba, Argentina

Search for more papers by this author
Glauco F. Bauerfeldt

Glauco F. Bauerfeldt

Departamento de Química Fundamental, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Brazil

Search for more papers by this author
Abdelwahid Mellouki

Abdelwahid Mellouki

Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS, Orléans Cedex 02, France

Search for more papers by this author
First published: 16 June 2023

Abstract

In this work, the rate-determining steps of the OH radical + 3-bromopropene gas phase reaction were studied, which could explain for the possible negative activation energy observed in experiments. To obtain new kinetic parameters and data for critical revisions, a reinvestigation of the rate coefficient (k) and its temperature dependence was carried out using the PLP-LIF technique, in the 254- to 371-K range. Moreover, quantum-mechanical and canonical variational transition state theory calculations were performed, taking into consideration four OH addition and two β-hydrogen atom abstraction reaction channels. The proposed kinetic model fits to the observed experimental Arrhenius behavior, and three not negligible reaction pathways are described for the first time.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.