A theoretical study on the reaction of ozone with aqueous iodide

Atmospheric iodine chemistry plays a key role in tropospheric ozone catalytic destruction, new particle formation, and as one of the possible sinks of gaseous polar elemental mercury. Moreover, it has been recently proposed that reaction of ozone with iodide on sea surface could be the major contrib...

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Detalles Bibliográficos
Autores: Gálvez González, Óscar, Baeza Romero, María Teresa, Sanz Monasterio, Mikel, Pacios, Luis F.
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/18831
Acceso en línea:http://hdl.handle.net/10578/18831
Access Level:acceso abierto
Palabra clave:Ozono
Ozone
Yoduro acuoso
Aqueous iodide
Reaciones quimicas
Chemical reactions
Descripción
Sumario:Atmospheric iodine chemistry plays a key role in tropospheric ozone catalytic destruction, new particle formation, and as one of the possible sinks of gaseous polar elemental mercury. Moreover, it has been recently proposed that reaction of ozone with iodide on sea surface could be the major contributor to the chemical loss of atmospheric ozone. However, the mechanism of the reaction between aqueous iodide and ozone is not well known. The aim of this paper is to improve the understanding of such mechanism. In this paper, it is presented an ab initio study of the reaction of aqueous iodide and ozone, evaluating thermodynamic data of the different reactions proposed in previous experimental studies. In addition, the structures, energetics and possible evolution of the key IOOO- intermediate are discussed for the first time.