The University of Southampton
University of Southampton Institutional Repository

A study of the atmospherically relevant reaction between molecular chlorine and dimethylsulfide (DMS): establishing the reaction intermediate and measurement of absolute photoionization cross-sections

A study of the atmospherically relevant reaction between molecular chlorine and dimethylsulfide (DMS): establishing the reaction intermediate and measurement of absolute photoionization cross-sections
A study of the atmospherically relevant reaction between molecular chlorine and dimethylsulfide (DMS): establishing the reaction intermediate and measurement of absolute photoionization cross-sections
In a study using UV photoelectron spectroscopy (PES) of the atmospherically relevant reaction CH3SCH3 + Cl-2, CH3SCH2Cl +HCl bands associated with a reaction intermediate have been observed. These have been assigned to ionization of the covalently bound molecule (CH3)(2)SCl2 on the basis of the intensity of the observed bands as a function of reaction time, molecular orbital calculations of vertical ionization energies and evidence from infrared spectroscopy. A method has also been developed, with the flow-tube/PE spectrometer combination used, to measure photoionization cross-sections of the reagents and products at the photon energy utilized and this has allowed the photoionization cross-section of the intermediate to be estimated. This work augments an earlier study in which the rate constant of the reaction between CH3SCH3 (DMS) and Cl-2 has been measured at room temperature.
atmospheric chemistry, reactive intermediate, photoionization, cross-sections, dimethyl sulfide reaction matrix-isolation, dihalogenodimethylselenium compounds, sulfur, sulfide, spectroscopy, atoms, complexes, halogen, bases, cl-2
85-95
Dyke, J.M.
46393b45-6694-46f3-af20-d7369d26199f
Ghosh, M.V.
210ab8df-8389-4bf5-9622-9931cc4a9f81
Goubet, M.
63668b91-2217-416f-ba9d-e00a68f22e9f
Lee, E.P.F.
f47c6d5d-2d1f-4f03-a3ff-03658812d80b
Levita, G.
ef218c00-047c-4ec3-a056-b78237ca2e94
Miqueu, K.
ec42f84e-a56f-438c-b8da-5970a86258c0
Shallcross, D.E.
9b36ee5a-feb1-4fea-a34c-f56e64dfae28
Dyke, J.M.
46393b45-6694-46f3-af20-d7369d26199f
Ghosh, M.V.
210ab8df-8389-4bf5-9622-9931cc4a9f81
Goubet, M.
63668b91-2217-416f-ba9d-e00a68f22e9f
Lee, E.P.F.
f47c6d5d-2d1f-4f03-a3ff-03658812d80b
Levita, G.
ef218c00-047c-4ec3-a056-b78237ca2e94
Miqueu, K.
ec42f84e-a56f-438c-b8da-5970a86258c0
Shallcross, D.E.
9b36ee5a-feb1-4fea-a34c-f56e64dfae28

Dyke, J.M., Ghosh, M.V., Goubet, M., Lee, E.P.F., Levita, G., Miqueu, K. and Shallcross, D.E. (2006) A study of the atmospherically relevant reaction between molecular chlorine and dimethylsulfide (DMS): establishing the reaction intermediate and measurement of absolute photoionization cross-sections. Chemical Physics, 324 (1), 85-95. (doi:10.1016/j.chemphys.2005.11.045).

Record type: Article

Abstract

In a study using UV photoelectron spectroscopy (PES) of the atmospherically relevant reaction CH3SCH3 + Cl-2, CH3SCH2Cl +HCl bands associated with a reaction intermediate have been observed. These have been assigned to ionization of the covalently bound molecule (CH3)(2)SCl2 on the basis of the intensity of the observed bands as a function of reaction time, molecular orbital calculations of vertical ionization energies and evidence from infrared spectroscopy. A method has also been developed, with the flow-tube/PE spectrometer combination used, to measure photoionization cross-sections of the reagents and products at the photon energy utilized and this has allowed the photoionization cross-section of the intermediate to be estimated. This work augments an earlier study in which the rate constant of the reaction between CH3SCH3 (DMS) and Cl-2 has been measured at room temperature.

Full text not available from this repository.

More information

Published date: 9 May 2006
Keywords: atmospheric chemistry, reactive intermediate, photoionization, cross-sections, dimethyl sulfide reaction matrix-isolation, dihalogenodimethylselenium compounds, sulfur, sulfide, spectroscopy, atoms, complexes, halogen, bases, cl-2

Identifiers

Local EPrints ID: 44428
URI: http://eprints.soton.ac.uk/id/eprint/44428
PURE UUID: 4368d054-5264-4f5d-85f6-7d6fb370f78a
ORCID for J.M. Dyke: ORCID iD orcid.org/0000-0002-9808-303X

Catalogue record

Date deposited: 01 Mar 2007
Last modified: 20 Jul 2019 01:27

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×