Hdl Handle:
http://hdl.handle.net/10149/98594
Title:
A discharge-flow study of Cl2O3
Authors:
Green, T. J.; Islam, M. (Meezanul); Guest, P. G. (Philip); Hickson, K. (Kevin); Canosa-Mas, C. E. (Carlos); Wayne, R. P. (Richard)
Affiliation:
Oxford University. Physical & Theoretical Chemistry Laboratory; University of Teesside. School of Science and Technology.
Citation:
Green, T. J. et. al. (2003) 'A discharge-flow study of Cl2O3', Physical Chemistry Chemical Physics, 5 (24), pp.5409-5418.
Publisher:
Royal Society of Chemistry
Journal:
Physical Chemistry Chemical Physics
Issue Date:
15-Dec-2003
URI:
http://hdl.handle.net/10149/98594
DOI:
10.1039/b311005b
Abstract:
The discharge-flow technique coupled with UV-absorption spectroscopy has been used to study the production of dichlorine trioxide, Cl2O 3, from the reaction between ClO and OClO radicals. The absorption cross section of Cl2O3 was determined to be (1.44 ± 0.10) × 10-17 cm2 molecule-1 at λmax = 267 nm (all errors reported are two standard deviations of the statistical error). The equilibrium constant for the process ClO + OClO + M ⇌ Cl2O3 + M was measured in the temperature range 243-298 K. A Second-Law analysis yielded values of ΔrH⊖ = -57.9 ± 2.1 kJ mol -1 and ΔrS⊖ = -132.6 ± 7.9 J K-1 mol-1. The rate coefficient for the formation of Cl2O3 was measured with helium as the third body at a concentration of ∼7.3 ± 1016 molecule cm-3 over the temperature range 243-283 K. Analysis of these data employing the conventional form of the rate equation for the low-pressure limit, k 0(T) = k0(300)·(T/300)-n, resulted in values of k0(300) = (2.83 ± 0.04) × 10-32 cm6 molecule-2 s-1 and n = -4.32 ± 0.1. These spectroscopic, thermochemical and kinetic data are compared with previously reported values.
Type:
Article
Language:
en
Keywords:
chlorine derivative; dichlorine trioxide; oxide; unclassified drug
ISSN:
1463-9076; 1463-9084
Rights:
Author can archive publisher's version/PDF. For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 12/05/2010]
Citation Count:
2 [Scopus, 12/05/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorGreen, T. J.en
dc.contributor.authorIslam, M. (Meezanul)en
dc.contributor.authorGuest, P. G. (Philip)en
dc.contributor.authorHickson, K. (Kevin)en
dc.contributor.authorCanosa-Mas, C. E. (Carlos)en
dc.contributor.authorWayne, R. P. (Richard)en
dc.date.accessioned2010-05-12T08:32:33Z-
dc.date.available2010-05-12T08:32:33Z-
dc.date.issued2003-12-15-
dc.identifier.citationPhysical Chemistry Chemical Physics; 5(24):5409-5418en
dc.identifier.issn1463-9076-
dc.identifier.issn1463-9084-
dc.identifier.doi10.1039/b311005b-
dc.identifier.urihttp://hdl.handle.net/10149/98594-
dc.description.abstractThe discharge-flow technique coupled with UV-absorption spectroscopy has been used to study the production of dichlorine trioxide, Cl2O 3, from the reaction between ClO and OClO radicals. The absorption cross section of Cl2O3 was determined to be (1.44 ± 0.10) × 10-17 cm2 molecule-1 at λmax = 267 nm (all errors reported are two standard deviations of the statistical error). The equilibrium constant for the process ClO + OClO + M ⇌ Cl2O3 + M was measured in the temperature range 243-298 K. A Second-Law analysis yielded values of ΔrH⊖ = -57.9 ± 2.1 kJ mol -1 and ΔrS⊖ = -132.6 ± 7.9 J K-1 mol-1. The rate coefficient for the formation of Cl2O3 was measured with helium as the third body at a concentration of ∼7.3 ± 1016 molecule cm-3 over the temperature range 243-283 K. Analysis of these data employing the conventional form of the rate equation for the low-pressure limit, k 0(T) = k0(300)·(T/300)-n, resulted in values of k0(300) = (2.83 ± 0.04) × 10-32 cm6 molecule-2 s-1 and n = -4.32 ± 0.1. These spectroscopic, thermochemical and kinetic data are compared with previously reported values.en
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.rightsAuthor can archive publisher's version/PDF. For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 12/05/2010]en
dc.subjectchlorine derivativeen
dc.subjectdichlorine trioxideen
dc.subjectoxideen
dc.subjectunclassified drugen
dc.titleA discharge-flow study of Cl2O3en
dc.typeArticleen
dc.contributor.departmentOxford University. Physical & Theoretical Chemistry Laboratory; University of Teesside. School of Science and Technology.en
dc.identifier.journalPhysical Chemistry Chemical Physicsen
ref.citationcount2 [Scopus, 12/05/2010]en
or.citation.harvardGreen, T. J. et. al. (2003) 'A discharge-flow study of Cl2O3', Physical Chemistry Chemical Physics, 5 (24), pp.5409-5418.-
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