<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wu, C.-C.</style></author><author><style face="normal" font="default" size="100%">Lin, H.-C.</style></author><author><style face="normal" font="default" size="100%">Chang, Y.-B.</style></author><author><style face="normal" font="default" size="100%">Tsai, P.-Y.</style></author><author><style face="normal" font="default" size="100%">Yeh, Y.-Y.</style></author><author><style face="normal" font="default" size="100%">Fan, H.</style></author><author><style face="normal" font="default" size="100%">Lin, K.-C.</style></author><author><style face="normal" font="default" size="100%">Francisco, J.S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Br 2 molecular elimination in photolysis of (COBr) 2 at 248 nm by using cavity ring-down absorption spectroscopy: A photodissociation channel being ignored</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Chemical Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ab initio</style></keyword><keyword><style  face="normal" font="default" size="100%">Boltzmann</style></keyword><keyword><style  face="normal" font="default" size="100%">CALCULATIONS</style></keyword><keyword><style  face="normal" font="default" size="100%">Cavity ring-down</style></keyword><keyword><style  face="normal" font="default" size="100%">Chemical reactions</style></keyword><keyword><style  face="normal" font="default" size="100%">Dissociation channels</style></keyword><keyword><style  face="normal" font="default" size="100%">Dissociation mechanisms</style></keyword><keyword><style  face="normal" font="default" size="100%">Elimination reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Energy calculation</style></keyword><keyword><style  face="normal" font="default" size="100%">Ground state</style></keyword><keyword><style  face="normal" font="default" size="100%">Internal conversions</style></keyword><keyword><style  face="normal" font="default" size="100%">Laser beams</style></keyword><keyword><style  face="normal" font="default" size="100%">Laser energies</style></keyword><keyword><style  face="normal" font="default" size="100%">Lasers</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular elimination</style></keyword><keyword><style  face="normal" font="default" size="100%">Multiphoton processes</style></keyword><keyword><style  face="normal" font="default" size="100%">Photodissociation</style></keyword><keyword><style  face="normal" font="default" size="100%">Photolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Pressure dependence</style></keyword><keyword><style  face="normal" font="default" size="100%">quantum theory</style></keyword><keyword><style  face="normal" font="default" size="100%">Quantum yield</style></keyword><keyword><style  face="normal" font="default" size="100%">Ring-down cells</style></keyword><keyword><style  face="normal" font="default" size="100%">Secondary reactions</style></keyword><keyword><style  face="normal" font="default" size="100%">Single-photon absorptions</style></keyword><keyword><style  face="normal" font="default" size="100%">Spectral simulations</style></keyword><keyword><style  face="normal" font="default" size="100%">Vibrational population</style></keyword><keyword><style  face="normal" font="default" size="100%">Vibrational temperature</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84555202652&amp;doi=10.1063%2f1.3664782&amp;partnerID=40&amp;md5=ed9be908f408948f0d734a7449622cc2</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">23</style></number><volume><style face="normal" font="default" size="100%">135</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A primary dissociation channel of Br 2 elimination is detected following a single-photon absorption of (COBr) 2 at 248 nm by using cavity ring-down absorption spectroscopy. The technique contains two laser beams propagating in a perpendicular configuration. The tunable laser beam along the axis of the ring-down cell probes the Br 2 fragment in the B 3Π + ou-X 1Σ g + transition. The measurements of laser energy- and pressure-dependence and addition of a Br scavenger are further carried out to rule out the probability of Br 2 contribution from a secondary reaction. By means of spectral simulation, the ratio of nascent vibrational population for v = 0, 1, and 2 levels is evaluated to be 1:(0.65 ± 0.09):(0.34 ± 0.07), corresponding to a Boltzmann vibrational temperature of 893 ± 31 K. The quantum yield of the ground state Br 2 elimination reaction is determined to be 0.11 ± 0.06. With the aid of ab initio potential energy calculations, the pathway of molecular elimination is proposed on the energetic ground state (COBr) 2 via internal conversion. A four-center dissociation mechanism is followed synchronously or sequentially yielding three fragments of Br 2 + 2CO. The resulting Br 2 is anticipated to be vibrationally hot. The measurement of a positive temperature effect supports the proposed mechanism. © 2011 American Institute of Physics.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;cited By 6&lt;/p&gt;
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