@article {Wu2011,
	title = {Br 2 molecular elimination in photolysis of (COBr) 2 at 248 nm by using cavity ring-down absorption spectroscopy: A photodissociation channel being ignored},
	journal = {Journal of Chemical Physics},
	volume = {135},
	number = {23},
	year = {2011},
	note = {<p>cited By 6</p>
},
	abstract = {<p>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 {\textpm} 0.09):(0.34 {\textpm} 0.07), corresponding to a Boltzmann vibrational temperature of 893 {\textpm} 31 K. The quantum yield of the ground state Br 2 elimination reaction is determined to be 0.11 {\textpm} 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. {\textcopyright} 2011 American Institute of Physics.</p>
},
	keywords = {Ab initio, Boltzmann, CALCULATIONS, Cavity ring-down, Chemical reactions, Dissociation channels, Dissociation mechanisms, Elimination reaction, Energy calculation, Ground state, Internal conversions, Laser beams, Laser energies, Lasers, Molecular elimination, Multiphoton processes, Photodissociation, Photolysis, Pressure dependence, quantum theory, Quantum yield, Ring-down cells, Secondary reactions, Single-photon absorptions, Spectral simulations, Vibrational population, Vibrational temperature},
	doi = {10.1063/1.3664782},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84555202652\&doi=10.1063\%2f1.3664782\&partnerID=40\&md5=ed9be908f408948f0d734a7449622cc2},
	author = {Wu, C.-C. and Lin, H.-C. and Chang, Y.-B. and Tsai, P.-Y. and Yeh, Y.-Y. and Fan, H. and Lin, K.-C. and Francisco, J.S.}
}
