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ESR kinetic study of the photobleaching of chlorine dioxide solutions at 303, 365 and 436 nm

Churio, M. S. and Brusa, M. A. and Perissinotti, L. J. and Ghibaudi, E. and Coronel, M. E. J. and Colussi, A. J. (1995) ESR kinetic study of the photobleaching of chlorine dioxide solutions at 303, 365 and 436 nm. Chemical Physics Letters, 232 (3). pp. 237-241. ISSN 0009-2614. doi:10.1016/0009-2614(94)01355-Y. https://resolver.caltech.edu/CaltechAUTHORS:20150623-154804664

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Abstract

Initial quantum yields for the photobleaching of OClO dissolved in CCl_4 at 298 K are measured by electron spin resonance spectrometry at three wavelengths, under 1 atm of either N_2 or O_2. Yields are unaffected at 365 nm, but increase by about 45% at 303 and 436 nm, when O_2 is replaced by N_2. These results, at variance with gas-phase photolysis, suggest a qualitative change in the mechanism of photofragmentation at ≈365 nm. We show that OClO solvatochromic shifts are controlled by the dynamic polarization of the medium, rather than by a modification of the energies of the states involved.


Item Type:Article
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URLURL TypeDescription
http://dx.doi.org/10.1016/0009-2614(94)01355-YDOIArticle
http://www.sciencedirect.com/science/article/pii/000926149401355YPublisherArticle
ORCID:
AuthorORCID
Colussi, A. J.0000-0002-3400-4101
Additional Information:© 1995 Elsevier. Received 11 July 1994; in final form 14 September 1994.
Issue or Number:3
DOI:10.1016/0009-2614(94)01355-Y
Record Number:CaltechAUTHORS:20150623-154804664
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150623-154804664
Official Citation:M.S. Churio, M.A. Brusa, L.J. Perissinotti, E. Ghibaudi, M.E.J. Coronel, A.J. Colussi, ESR kinetic study of the photobleaching of chlorine dioxide solutions at 303, 365 and 436 nm, Chemical Physics Letters, Volume 232, Issue 3, 13 January 1995, Pages 237-241, ISSN 0009-2614, http://dx.doi.org/10.1016/0009-2614(94)01355-Y. (http://www.sciencedirect.com/science/article/pii/000926149401355Y)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58509
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:26 Jun 2015 16:03
Last Modified:10 Nov 2021 22:06

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