%0 Journal Article %1 Gilles:1999p2252 %A Gilles, MK %A Burkholder, JB %A Ravishankara, A. R %D 1999 %J International Journal of Chemical Kinetics %K 298 Brcl, Clo, Hoi Io, K, Kinetics, Measurements, Mechanism, Product Rate-Constant, %N 6 %P 417--424 %T Rate coefficients for the reaction of OH with Cl-2, Br-2, and I-2 from 235 to 354 K %U http://www.google.com/search?client=safari&rls=en-us&q=Rate+coefficients+for+the+reaction+of+OH+with+Cl-2,+Br-2,+and+I-2+from+235+to+354+K&ie=UTF-8&oe=UTF-8 %V 31 %X Rate coefficients for the reaction of OH with Cl-2, (k(1)), Br-2, (k(2)) and I-2, (k(3)), were measured under pseudo-first-order conditions in OH. OH was produced by pulsed laser photolysis of H2O2 (or HNO3) and its temporal profile was monitored by laser-induced fluorescence. The measured rate coefficients for k(1) (231-354 K) and k(2) (235-357 K) are:k(1) (T) = (3.77 +/- 1.02) X 10(-12) exp-(1228 +/- 140)/T cm(3) molecule(-1) s(-1)k(2) (T) = (1.98 +/- 0.51) X 10(-11) exp(238 +/- 70)/T cm(3) molecule(-1) s(-1)k(3) was independent of temperature between 240 and 348 K with an average Value of (2.10 +/- 0.60) X 10(-10) cm(3) molecule(-1) s(-1). The quoted uncertainties are 2 sigma (95% confidence limits, 1 sigma(A) = A sigma(lnA)) and include estimated systematic errors. Our measurements significantly improve the accuracy of k(1). This is the first report of a slight negative temperature dependence for k(2) and of the temperature independence of k(3). (C) 1999 John Wiley & Sons, Inc.*

@article{Gilles:1999p2252, abstract = {Rate coefficients for the reaction of OH with Cl-2, (k(1)), Br-2, (k(2)) and I-2, (k(3)), were measured under pseudo-first-order conditions in OH. OH was produced by pulsed laser photolysis of H2O2 (or HNO3) and its temporal profile was monitored by laser-induced fluorescence. The measured rate coefficients for k(1) (231-354 K) and k(2) (235-357 K) are:k(1) (T) = (3.77 +/- 1.02) X 10(-12) exp[-(1228 +/- 140)/T] cm(3) molecule(-1) s(-1)k(2) (T) = (1.98 +/- 0.51) X 10(-11) exp[(238 +/- 70)/T] cm(3) molecule(-1) s(-1)k(3) was independent of temperature between 240 and 348 K with an average Value of (2.10 +/- 0.60) X 10(-10) cm(3) molecule(-1) s(-1). The quoted uncertainties are 2 sigma (95% confidence limits, 1 sigma(A) = A sigma(lnA)) and include estimated systematic errors. Our measurements significantly improve the accuracy of k(1). This is the first report of a slight negative temperature dependence for k(2) and of the temperature independence of k(3). (C) 1999 John Wiley {\&} Sons, Inc.*}, added-at = {2010-06-22T19:38:37.000+0200}, affiliation = {Univ Colorado, Cooperat Inst Res Environm Studies, Boulder, CO 80309 USA}, author = {Gilles, MK and Burkholder, JB and Ravishankara, A. R}, biburl = {https://www.bibsonomy.org/bibtex/23486e86dd7d4c3c509311c40b2818b0c/gsmith}, date-added = {2010-03-23 14:40:45 -0400}, date-modified = {2010-05-07 16:47:45 -0400}, interhash = {06e84ed334f8388d4fe0b9cc9b06e596}, intrahash = {3486e86dd7d4c3c509311c40b2818b0c}, journal = {International Journal of Chemical Kinetics}, keywords = {298 Brcl, Clo, Hoi Io, K, Kinetics, Measurements, Mechanism, Product Rate-Constant,}, language = {English}, local-url = {file://localhost/Users/geoffreysmith/Documents/Papers/International%20Journal%20of%20Chemical%20Kinetics/1999/International%20Journal%20of%20Chemical%20Kinetics,%2031,%20417-424%201999.pdf}, month = Jan, number = 6, pages = {417--424}, pmid = {000080484800003}, rating = {0}, timestamp = {2010-06-22T19:39:12.000+0200}, title = {Rate coefficients for the reaction of OH with Cl-2, Br-2, and I-2 from 235 to 354 K}, uri = {papers://E88B624E-D406-46FF-9D95-BB9C1AAE3FDC/Paper/p2252}, url = {http://www.google.com/search?client=safari&rls=en-us&q=Rate+coefficients+for+the+reaction+of+OH+with+Cl-2,+Br-2,+and+I-2+from+235+to+354+K&ie=UTF-8&oe=UTF-8}, volume = 31, year = 1999 }