<?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%">S.-Y. Chen</style></author><author><style face="normal" font="default" size="100%">Tsai, P.-Y.</style></author><author><style face="normal" font="default" size="100%">Lin, H.-C.</style></author><author><style face="normal" font="default" size="100%">Wu, C.-C.</style></author><author><style face="normal" font="default" size="100%">Lin, K.-C.</style></author><author><style face="normal" font="default" size="100%">Sun, B.J.</style></author><author><style face="normal" font="default" size="100%">A.H.H. Chang</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">I2 molecular elimination in single-photon dissociation of CH2I2 at 248 nm by using cavity ring-down absorption spectroscopy</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%">ABSORPTION</style></keyword><keyword><style  face="normal" font="default" size="100%">Absorption spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">Article</style></keyword><keyword><style  face="normal" font="default" size="100%">Boltzmann</style></keyword><keyword><style  face="normal" font="default" size="100%">Cavity ring-down</style></keyword><keyword><style  face="normal" font="default" size="100%">Chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">DISSOCIATION</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%">Hydrocarbons</style></keyword><keyword><style  face="normal" font="default" size="100%">Internal conversions</style></keyword><keyword><style  face="normal" font="default" size="100%">Iodinated</style></keyword><keyword><style  face="normal" font="default" size="100%">iodinated hydrocarbon</style></keyword><keyword><style  face="normal" font="default" size="100%">iodine</style></keyword><keyword><style  face="normal" font="default" size="100%">Laser beams</style></keyword><keyword><style  face="normal" font="default" size="100%">Lasers</style></keyword><keyword><style  face="normal" font="default" size="100%">methylene iodide</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%">Particle beams</style></keyword><keyword><style  face="normal" font="default" size="100%">photon</style></keyword><keyword><style  face="normal" font="default" size="100%">Photons</style></keyword><keyword><style  face="normal" font="default" size="100%">Population ratio</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%">Single-photon dissociation</style></keyword><keyword><style  face="normal" font="default" size="100%">Spectrophotometry</style></keyword><keyword><style  face="normal" font="default" size="100%">Temperature</style></keyword><keyword><style  face="normal" font="default" size="100%">Temperature effects</style></keyword><keyword><style  face="normal" font="default" size="100%">Tunable lasers</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultraviolet</style></keyword><keyword><style  face="normal" font="default" size="100%">ultraviolet spectrophotometry</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-s2.0-79551624294&amp;doi=10.1063%2f1.3523571&amp;partnerID=40&amp;md5=baffccd8329095529a0c82c7ea2930e3</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">134</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Following single-photon dissociation of CH2I2 at 248 nm, I2 molecular elimination is detected by using cavity ring-down absorption spectroscopy. The technique comprises two laser beams propagating in a perpendicular configuration, in which a tunable laser beam along the axis of the ring-down cell probes the I2 fragment in the B 3 ou + - X 1 g + transition. The nascent vibrational populations for v 0, 1, and 2 levels are obtained with a population ratio of 1:(0.65 0.10):(0.30 0.05), corresponding to a Boltzmann-like vibrational temperature of 544 73 K. The quantum yield of the ground state I2 elimination reaction is determined to be 0.0040 0.0025. With the aid of ab initio potential energy calculations, the pathway of molecular elimination is proposed on the energetic ground state CH2I2 via internal conversion, followed by asynchronous three-center dissociation. 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 10&lt;/p&gt;
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