Show simple item record

dc.creatorChhantyal-Pun, Rabien_US
dc.creatorKline, Neal D.en_US
dc.creatorThomas, Phillip S.en_US
dc.creatorMiller, Terry A.en_US
dc.date.accessioned2010-07-12T14:13:08Z
dc.date.available2010-07-12T14:13:08Z
dc.date.issued2010en_US
dc.identifier2010-MI-07en_US
dc.identifier.urihttp://hdl.handle.net/1811/46258
dc.descriptionAuthor Institution: Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University, 120 W. 18th Avenue, Columbus OH 43210en_US
dc.description.abstractPeroxy radicals, formed by the addition of oxygen to organic radicals, are key intermediates in combustion and atmospheric chemistry. $\beta$-hydroxyethyl peroxy (HOC$_{2}$H$_{4}$OO/ $\beta$-HEP) in particular is a key intermediate in the OH radical mediated oxidation of ethene in the atmosphere and the combustion of ethanol. Historically, $\widetilde{B}$-$\widetilde{X}$ transitions of peroxy radicals have been monitored in kinetic studies. However, this system cannot be used to extract detailed structural information due to predissociation in the $\widetilde{B}$ state. Recently, the $\widetilde{A}$-$\widetilde{X}$ transitions, which are weak but structured and specific to conformers and isomers, have been studied for a number of aliphatic and aromatic peroxy radicals using the sensitive cavity ring down spectroscopy (CRDS) technique. In this work we present for the first time the observation and analysis of the $\widetilde{A}$-$\widetilde{X}$ transition of the $\beta$-HEP using CRDS. Aided by \emph{ab inito} and DFT calculations, we tentatively assign our spectrum to low energy conformers involving different G($\pm$120$^irc}$) and T(O$^irc}$) orientations of the three dihedral angles between the OOC and OCC, the OCC and CCO, and the CCO and COH planes.en_US
dc.language.isoenen_US
dc.publisherOhio State Universityen_US
dc.titleOBSERVATION OF THE $\widetilde{A}$ - $\widetilde{X}$ ELECTRONIC TRANSITION OF $\beta$-HYDROXYETHYL PEROXY VIA CAVITY RING DOWN SPECTROSCOPYen_US
dc.typeArticleen_US
dc.typeImageen_US
dc.typePresentationen_US


Files in this item

Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail

Items in Knowledge Bank are protected by copyright, with all rights reserved, unless otherwise indicated.

This item appears in the following Collection(s)

Show simple item record