%0 Journal Article %1 LIN:1994p2249 %A LIN, SC %A KUO, TC %A LEE, YP %D 1994 %J Journal of Chemical Physics %K Aromatic-Hydrocarbons, Benzene, Constants, Decay, Gas-Phase Hydroxyl Kinetics, Oh-Radicals, Quasi-Equilibrium Radicals, Rate Reaction, Unimolecular Uv-Laser-Absorption, %N 3 %P 2098--2105 %T DETAILED RATE COEFFICIENTS AND THE ENTHALPY CHANGE OF THE EQUILIBRIUM REACTION OH+C6H6--(HOC6H6)-H-M OVER THE TEMPERATURE-RANGE 345-385-K %U http://www.google.com/search?client=safari&rls=en-us&q=DETAILED+RATE+COEFFICIENTS+AND+THE+ENTHALPY+CHANGE+OF+THE+EQUILIBRIUM+REACTION+OH+C6H6%255B--%255D(HOC6H6)-H-M+OVER+THE+TEMPERATURE-RANGE+345-385-K&ie=UTF-8&oe=UTF-8 %V 101 %X The reaction between OH and C6H6 in He has been studied over the pressure range 250-500 Ton and the temperature range 345-385 K by means of the laser-photolysis/laser-induced-fluorescence technique. Analysis of the temporal profile of OH yielded the detailed rate coefficients and the equilibrium constant for the reaction OH+C6H6+M<->HOC6H6+M. The temperature dependence of the rate coefficients for the forward, the reverse, and the adduct-loss reactions have been determined to be k(f)=(2.0+/-0.1)X 10(-14) exp(1420+/-250)/T cm(3) molecule(-1) s(-1) k(r)=(3.0+/-0.2)X10(12) exp-(8240+/-320)/T s(-1), and k(a)=(1.7+/-0.3)x10(6) exp-(3500+/-360)/T s(-1) respectively. The temperature dependence of the equilibrium constant led to the enthalpy of reaction Delta H(365+/-20 K)=-(20.0+/-1.2) kcalmol(-1) and the entropy of reaction Delta S(365+/-20 K)=-(33.6+/-2.5) calK(-1)mol(-1), greater than previously reported values; after correction for temperature dependence, Delta H-0(298 K)=-(19.9+/-1.2) kcalmol(-1) and Delta S-0(298 K)=-(33.4+/-2.6) calK(-1) mol(-1).

@article{LIN:1994p2249, abstract = {The reaction between OH and C6H6 in He has been studied over the pressure range 250-500 Ton and the temperature range 345-385 K by means of the laser-photolysis/laser-induced-fluorescence technique. Analysis of the temporal profile of [OH] yielded the detailed rate coefficients and the equilibrium constant for the reaction OH+C6H6+M<->HOC6H6+M. The temperature dependence of the rate coefficients for the forward, the reverse, and the adduct-loss reactions have been determined to be k(f)=(2.0+/-0.1)X 10(-14) exp[(1420+/-250)/T] cm(3) molecule(-1) s(-1) k(r)=(3.0+/-0.2)X10(12) exp[-(8240+/-320)/T] s(-1), and k(a)=(1.7+/-0.3)x10(6) exp[-(3500+/-360)/T] s(-1) respectively. The temperature dependence of the equilibrium constant led to the enthalpy of reaction Delta H(365+/-20 K)=-(20.0+/-1.2) kcalmol(-1) and the entropy of reaction Delta S(365+/-20 K)=-(33.6+/-2.5) calK(-1)mol(-1), greater than previously reported values; after correction for temperature dependence, Delta H-0(298 K)=-(19.9+/-1.2) kcalmol(-1) and Delta S-0(298 K)=-(33.4+/-2.6) calK(-1) mol(-1).}, added-at = {2010-06-22T19:38:37.000+0200}, author = {LIN, SC and KUO, TC and LEE, YP}, biburl = {https://www.bibsonomy.org/bibtex/2b6a09446d0b533f2b8174d7411796bde/gsmith}, date-added = {2010-03-23 14:40:45 -0400}, date-modified = {2010-04-28 14:42:22 -0400}, interhash = {396e7b4dd16187e5ff279c7704f848f1}, intrahash = {b6a09446d0b533f2b8174d7411796bde}, journal = {Journal of Chemical Physics}, keywords = {Aromatic-Hydrocarbons, Benzene, Constants, Decay, Gas-Phase Hydroxyl Kinetics, Oh-Radicals, Quasi-Equilibrium Radicals, Rate Reaction, Unimolecular Uv-Laser-Absorption,}, language = {English}, local-url = {file://localhost/Users/geoffreysmith/Documents/Papers/Journal%20of%20Chemical%20Physics/1994/Journal%20of%20Chemical%20Physics,%20101,%202098-2105%201994.pdf}, month = Jan, number = 3, pages = {2098--2105}, pmid = {A1994NY00200034}, rating = {0}, timestamp = {2010-06-22T19:39:24.000+0200}, title = {DETAILED RATE COEFFICIENTS AND THE ENTHALPY CHANGE OF THE EQUILIBRIUM REACTION OH+C6H6[--](HOC6H6)-H-M OVER THE TEMPERATURE-RANGE 345-385-K}, uri = {papers://E88B624E-D406-46FF-9D95-BB9C1AAE3FDC/Paper/p2249}, url = {http://www.google.com/search?client=safari&rls=en-us&q=DETAILED+RATE+COEFFICIENTS+AND+THE+ENTHALPY+CHANGE+OF+THE+EQUILIBRIUM+REACTION+OH+C6H6%255B--%255D(HOC6H6)-H-M+OVER+THE+TEMPERATURE-RANGE+345-385-K&ie=UTF-8&oe=UTF-8}, volume = 101, year = 1994 }