1
|
Winiberg FAF, Zuraski K, Liu Y, Sander SP, Percival CJ. Pressure and Temperature Dependencies of Rate Coefficients for the Reaction OH + NO 2 + M → Products. J Phys Chem A 2020; 124:10121-10131. [DOI: 10.1021/acs.jpca.0c08920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Frank A. F. Winiberg
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, United States
| | - Kristen Zuraski
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, United States
| | - Yingdi Liu
- SRI International, Menlo Park, California 94025, United States
| | - Stanley P. Sander
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, United States
| | - Carl J. Percival
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, United States
| |
Collapse
|
2
|
DOTTONE LUCA, Ochonogor E. Error Analysis of Absolute Rate Coefficient Extrapolated Under Pseudo-First Order Conditions. Journal of the Turkish Chemical Society, Section A: Chemistry 2017. [DOI: 10.18596/jotcsa.333857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|
3
|
Abstract
A water-assisted low temperature plasma (WALTP) ionization source based on a quartz T shaped tube was developed for a miniature rectilinear ion trap mass spectrometer to sensitively detect explosives at low picogram level.
Collapse
Affiliation(s)
- Wendong Chen
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
- University of Chinese Academy of Sciences
- Beijing 100049, China
| | - Keyong Hou
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | - Lei Hua
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | | | - Haiyang Li
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| |
Collapse
|
4
|
Tatum Ernest C, Bauer D, Hynes AJ. Radical quantum yields from formaldehyde photolysis in the 30,400-32,890 cm(-1) (304-329 nm) spectral region: detection of radical photoproducts using pulsed laser photolysis-pulsed laser induced fluorescence. J Phys Chem A 2012; 116:6983-95. [PMID: 22625180 DOI: 10.1021/jp2117399] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The relative quantum yield for the production of radical products, H + HCO, from the UV photolysis of formaldehyde (HCHO) has been measured using a pulsed laser photolysis–pulsed laser induced fluorescence (PLP–PLIF) technique across the 30,400–32,890 cm(–1) (304–329 nm) spectral region of the Ã(1)A2–X̃(1)A1 electronic transition. The photolysis laser had a bandwidth of 0.09 cm(–1), which is slightly broader than the Doppler width of a rotational line of formaldehyde at 300 K (0.07 cm(–1)), and the yield spectrum shows detailed rotational structure. The H and HCO photofragments were monitored using LIF of the OH radical as a spectroscopic marker. The OH radicals were produced by rapid reaction of the H and HCO photofragments with NO2. This technique produced an “action” spectrum that at any photolysis wavelength is the product of the H + HCO radical quantum yield and HCHO absorption cross section at the photolysis wavelength and is a relative measurement. Using the HCHO absorption cross section previously obtained in this laboratory, the relative quantum yield was determined two different ways. One produced band specific yields, and the other produced yields averaged over each 100 cm(–1). Yields were normalized to a value of 0.69 at 31,750 cm(–1) based on the current recommendation of Sander et al. (Sander, S. P.; Abbatt, J.; Barker, J. R.; Burkholder, J. B.; Friedl, R. R.; Golden, D. M.; Huie, R. E.; Kolb, C. E.; Kurylo, M. J.; Moortgat, G. K.; et al. Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation No. 17; Jet Propulsion Laboratory: Pasadena, CA, USA, 2011). The resulting radical quantum yields agree well with previous experimental studies and the current JPL recommendation but show greater wavelength dependent structure. A significant decrease in the quantum yield was observed for the 5(0)(1) + 1(0)(1)4(0)(1) combination band centered at 31,125 cm(–1). This band has a low absorption cross section and has little impact on the calculated atmospheric photodissociation rate but is a further indication of the complexity of HCHO photodissociation dynamics.
Collapse
Affiliation(s)
- Cheryl Tatum Ernest
- Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, United States
| | | | | |
Collapse
|
5
|
Affiliation(s)
- Jürgen Troe
- Institut für Physikalische Chemie der Universität and Max-Planck-Institut für Biophysikalische Chemie, Göttingen Tammannstrasse 6, D-37077 Göttingen,
Germany
| |
Collapse
|
6
|
Abstract
Heterogeneous reactions of nitrogen dioxide (NO2) on soils collected from Dalian (S1) and Changsha (S2) were investigated over the relative humidity (RH) range of 5%-80% and temperature range of 278-328 K using a horizontal coated-wall flow tube. The initial uptake coefficients of NO2 on S2 exhibited a decreasing trend from (10 +/- 1.3) x 10(-8) to (3.1 +/- 0.5) x 10(-8) with the relative humidity increasing from 5% to 80%. In the temperature effect studies, the initial uptake coefficients of S1 and S2 decreased from (10 +/- 1.2) x 10(-8) to (3.8 +/- 0.5) x 10(-8) and from (16 +/- 2.2) x 10(-8) to (3.8 +/- 0.4) x 10(-8) when temperature increased from 278 to 288 K for S1 and from 278 to 308 K for S2, respectively. As the temperature continued to increase, the initial uptake coefficients of S1 and S2 returned to (7.9 +/- 1.1) x 10(-8) and (20 +/- 3.1) x 10(-8) at 313 and 328 K, respectively. This study shows that relative humidity could influence the uptake kinetics of NO2 on soil and temperature would impact the heterogeneous chemistry of NO2.
Collapse
Affiliation(s)
- Lei Wang
- Beijing National Laboratory for Molecular Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | | | | |
Collapse
|
7
|
Mollner AK, Valluvadasan S, Feng L, Sprague MK, Okumura M, Milligan DB, Bloss WJ, Sander SP, Martien PT, Harley RA, McCoy AB, Carter WPL. Rate of Gas Phase Association of Hydroxyl Radical and Nitrogen Dioxide. Science 2010; 330:646-9. [DOI: 10.1126/science.1193030] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
8
|
Abstract
The kinetics of the reaction of hydroxyl radicals with chlorobenzene was studied experimentally using a pulsed laser photolysis/pulsed laser induced fluorescence technique over a wide range of temperatures, 298-670 K, and at pressures between 13.33 and 39.92 kPa. The bimolecular rate constants demonstrate different behavior at low and high temperatures. At room temperature, T = 298.8 +/- 1.5 K, the rate constant is equal to (6.02 +/- 0.34) x 10(-13) cm3 molecule(-1) s(-1); at high temperatures (474-670 K), the rate constant values are significantly lower and have a positive temperature dependence that can be described by an Arrhenius expression k1(T) = (1.01 +/- 0.35) x 10(-11) exp[(-2490 +/- 170 K)/T] cm3 molecule(-1) s(-1). This behavior is consistent with the low-temperature reaction being dominated by reversible addition and the high-temperature reaction representing abstraction and addition-elimination channels. The potential energy surface of the reaction was studied using quantum chemical methods, and a transition state theory model was developed for all reaction channels. The temperature dependences of the high-temperature rate constants obtained in calculations using the method of isodesmic reactions for transition states (IRTS) and the CBS-QB3 method are in very good agreement with experiment, with deviations smaller than the estimated experimental uncertainties. The G3//B3LYP-based calculated rate constants are in disagreement with the experimental values. The IRTS-based model was used to provide modified Arrhenius expressions for the temperature dependences of the rate constant for the abstraction and addition-elimination (Cl replacement) channels of the reaction.
Collapse
Affiliation(s)
- Mikhail G Bryukov
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | | | | | | |
Collapse
|
9
|
Williams MB, Campuzano-Jost P, Hynes AJ, Pounds AJ. Experimental and Theoretical Studies of the Reaction of the OH Radical with Alkyl Sulfides: 3. Kinetics and Mechanism of the OH Initiated Oxidation of Dimethyl, Dipropyl, and Dibutyl Sulfides: Reactivity Trends in the Alkyl Sulfides and Development of a Predictive Expression for the Reaction of OH with DMS. J Phys Chem A 2009; 113:6697-709. [DOI: 10.1021/jp9010668] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. B. Williams
- Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science at the University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149
| | - P. Campuzano-Jost
- Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science at the University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149
| | - A. J. Hynes
- Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science at the University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149
| | - A. J. Pounds
- Department of Chemistry, Mercer University, 1400 Coleman Avenue, Macon, Georgia 31207
| |
Collapse
|
10
|
Glowacki DR, Reed SK, Pilling MJ, Shalashilin DV, Martínez-Núñez E. Classical, quantum and statistical simulations of vibrationally excited HOSO2: IVR, dissociation, and implications for OH + SO2kinetics at high pressures. Phys Chem Chem Phys 2009; 11:963-74. [DOI: 10.1039/b816108a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
11
|
Rasmussen CL, Hansen J, Marshall P, Glarborg P. Experimental measurements and kinetic modeling of CO/H2/O2/NOxconversion at high pressure. INT J CHEM KINET 2008. [DOI: 10.1002/kin.20327] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
12
|
Bryukov MG, Vidrine RG, Dellinger B. Temperature-Dependent Kinetics Study of the Gas-Phase Reactions of OH with n- and i-Propyl Bromide. J Phys Chem A 2007; 111:6197-203. [PMID: 17595069 DOI: 10.1021/jp072693c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An experimental, temperature-dependent kinetics study of the gas-phase reactions of hydroxyl radical with n-propyl bromide, OH+n-C3H7Br-->products (reaction 1), and i-propyl bromide, OH+i-C3H7Br-->products (reaction 2), has been performed over wide ranges of temperatures 297-725 and 297-715 K, respectively, and at pressures between 6.67 and 26.76 kPa by a pulsed laser photolysis/pulsed laser-induced fluorescence technique. Data sets of absolute bimolecular rate coefficients obtained in this study for reactions 1 and 2 demonstrate no correlation with pressure and exhibit positive temperature dependencies that can be represented with modified three-parameter Arrhenius expressions within their corresponding experimental temperature ranges: k1(T)=(1.32x10(-17))T1.95 exp(+25/T) cm3 molecule(-1) s(-1) for reaction 1 and k2(T)=(1.56x10(-24))T4.18exp(+922/T) cm3 molecule(-1) s(-1) for reaction 2. The present results, which extend the current kinetics data base of reactions 1 and 2 to high temperatures, are compared with those from previous works. On the basis of the present data and available data from previous studies, the following bimolecular rate coefficient temperature dependencies can be recommended for the purpose of kinetic modeling: k1(T)=(1.89x10(-19))T2.54exp(+301/T) cm3 molecule-1 s-1 for reaction 1 in a temperature range 210-725 K, and k2(T)=(2.83x10(-21))T3.1exp(+521/T) cm3 molecule(-1) s(-1) and k2(T)=(4.54x10(-24))T4.03exp(+860/T) cm3 molecule(-1) s(-1) for reaction 2 in temperature ranges 210-480 and 297-715 K, respectively.
Collapse
Affiliation(s)
- Mikhail G Bryukov
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | | | | |
Collapse
|
13
|
Williams MB, Campuzano-Jost P, Cossairt BM, Hynes AJ, Pounds AJ. Experimental and Theoretical Studies of the Reaction of the OH Radical with Alkyl Sulfides: 1. Direct Observations of the Formation of the OH−DMS Adduct−Pressure Dependence of the Forward Rate of Addition and Development of a Predictive Expression at Low Temperature. J Phys Chem A 2007; 111:89-104. [PMID: 17201392 DOI: 10.1021/jp063873+] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A pulsed laser photolysis-pulsed laser-induced fluorescence (PLP-PLIF) system was employed to study the kinetics and mechanisms of reactions (1) OH + h6-DMS --> products and (2) OH + d6-DMS --> products. We report direct observations of the rate coefficients for the formation and dissociation of the h6-OHDMS and d6-OHDMS adducts over the pressure range 50-650 Torr and between 240 and 245 K, together with measurements of the oxygen dependence of the effective rate coefficients for reactions 1 and 2 under similar conditions. The effective rate coefficients increased as a function of O2 concentration reaching their limiting values in each case. The values of the adduct formation rate, obtained from the O2 dependencies, were in excellent agreement with values determined from direct observation of adduct equilibration in N2. OH regeneration is insignificant. The rate coefficients for the formation of the adduct isotopomers showed slight differences in their falloff behavior and do not approach the high-pressure limit in either case. The equilibrium constants obtained show no dependence on isotopomer and are in good agreement with previous work. A "second-law" analysis of the temperature dependence of the equilibrium constant gives an adduct bond strength (DeltaH degrees =-10.9 +/- 1.0 kcal mol(-1)), also in good agreement with previously reported values. Using the entropy calculated from the ab initio vibrational frequencies, we obtain a "third-law" value for the reaction enthalpy at 240 K, DeltaH(240K) degrees = -10.5 kcal mol(-1) in good agreement with the other approach. The rate coefficient for the reactions of the adducts with O2 was obtained from an analysis of the O2 dependence and was determined to be 6.3 +/- 1.2 x 10(-13) cm3 molecule(-1) s(-1), with no dependence on pressure or isotopomer. The pressure and temperature dependence for all of the elementary processes in the initial steps of the dimethylsulfide (DMS) oxidation mechanism have been characterized in the range 238-245 K, allowing the formulation of an expression which can be used to calculate the effective rate coefficient for reaction 1 at any pressure and oxygen concentration. The expression can calculate the effective rate coefficient for reaction 1 to +/- 40% over the range 220-260 K, with the largest errors at the extremes of this range. Gaussian 03 has been used to calculate the structure of the OH-DMS adduct and its deuterated isotopomer. We find similar bound structures for both isotopomers. The calculated enthalpies of formation of the adducts are lower than the experimentally determined values.
Collapse
Affiliation(s)
- M B Williams
- Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science at the University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA
| | | | | | | | | |
Collapse
|
14
|
Abstract
An experimental, temperature-dependent kinetic study of the gas-phase reaction of the hydroxyl radical with molecular bromine (reaction 1) has been performed by using a pulsed laser photolysis/pulsed-laser-induced fluorescence technique over a wide temperature range of 297-766 K, and at pressures between 6.68 and 40.29 kPa of helium. The experimental rate coefficients for reaction 1 demonstrate no correlation with pressure and exhibit a negative temperature dependence with a slight negative curvature in the Arrhenius plot. A nonlinear least-squares fit with two floating parameters of the temperature-dependent k(1)(T) data set using an equation of the form k(1)(T) = AT(n) yields the recommended expression k(1)(T) = (1.85 x 10(-9))T(-0.66) cm(3) molecule(-1) s(-1) for the temperature dependence of the reaction 1 rate coefficient. The potential energy surface (PES) of reaction 1 was investigated with use of quantum chemistry methods. The reaction proceeds through formation of a weakly bound OH...Br(2) complex and a PES saddle point with an energy below that of the reactants. Temperature dependence of the reaction rate coefficient was modeled by using the RRKM method on the basis of the calculated PES.
Collapse
Affiliation(s)
- Mikhail G Bryukov
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | | | | |
Collapse
|
15
|
Nazarov EG, Miller RA, Eiceman GA, Stone JA. Miniature Differential Mobility Spectrometry Using Atmospheric Pressure Photoionization. Anal Chem 2006; 78:4553-63. [PMID: 16808465 DOI: 10.1021/ac052213i] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Positive and negative ion spectra have been obtained with a miniature differential mobility spectrometer equipped with a photoionization source operating at atmospheric pressure. With benzene as a dopant, providing C6H6+ as reactant ion, protonated molecular ions and proton-bound dimer ions were obtained with dimethyl methylphosphonate and butanone. The spectra obtained from gas chromatographic injections of aromatic hydrocarbons, benzene, toluene, and the xylenes, produced the molecular ions when the moisture level was very low, but at a high level the hydrated proton was also present. Possible mechanisms for the formation of protonated products are discussed. Negative ions were produced from electron capture by sulfur hexafluoride using benzene or acetone as dopant. Photoionization of nitrogen dioxide led to the formation of the nitrate ion whose yield was a nonlinear function of concentration. The use of a suitable dopant enhanced ion formation by up to 2 orders of magnitude, and limits of detection in both the positive and negative modes were all at the sub ppm(v) level. The study makes a strong case for the use of a photoionization source as an alternative to the radioactive 63Ni source.
Collapse
Affiliation(s)
- Erkinjon G Nazarov
- Sionex Corporation, 8-A Preston Court, Bedford, Massachusetts 01730, USA.
| | | | | | | |
Collapse
|
16
|
Abstract
Several recent experimental studies have provided substantial new constraints for the mechanisms on the HNO3 potential energy surface. These include observations of biexponential OH decay over short time scales from OH + NO2, which constrain key properties of the short-lived HOONO intermediate, observations of both conformers of the HOONO intermediate itself, isotopic scrambling data for 18OH + NO2, and observations of HONO2 production from the HO2 + NO reaction. We combine all of these recent data in a master-equation simulation of the system. This simulation is initialized with computational values for both stable species (wells) and transition states, but parameters are then adjusted to fit the observations. All parameters are kept within limits defined by experimental and theoretical uncertainty, and all converge away from their bounds. The primary fitting is carried out on the OH kinetic data-we first fit the biexponential kinetics, then address the isotopic scrambling. Isotopic scrambling is shown to be rapid but not complete at low pressure, while at least two parameter sets are shown to be consistent with the biexponential data. Of these two parameter sets, one is far more consistent with recent observations of trans-HOONO decay, isotopic scrambling, and HONO2 production from HO2 + NO. This we regard as the most probable potential energy surface for the reaction. On this PES, cis-trans isomerization for HOONO is slow but isomerization of trans-HOONO to HONO2 is rapid. This has significant implications for observed HOONO behavior and also HONO2 formation in the atmosphere from both HO2 + NO and OH + NO2.
Collapse
Affiliation(s)
- Jieyuan Zhang
- Department of Chemistry and Chemical Engineering, Carnegie Mellon University, Doherty Hall 1107, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, USA
| | | |
Collapse
|
17
|
Abstract
High pressure experiments on the OH + NO2 reaction are presented for 3 different temperatures. At 300 K, experiments in He (p = 2-500 bar) as well as in Ar (p = 2-4 bar) were performed. The rate constants obtained in Ar agree well with values which have been reported earlier by our group (Forster, R.; Frost, M.; Fulle, D.; Hamann, H. F.; Hippler, H.; Schlepegrell, A.; Troe, J. J. Chem. Phys. 1995, 103, 2949. Fulle, D.; Hamann, H. F.; Hippler, H.; Troe, J. J. Chem. Phys. 1998, 108, 5391). In contrast, the rate coefficients determined in He were found to be 15-25% lower than the values given in our earlier publications. Additionally, results for He as bath gas at elevated temperatures (T = 400 K, p = 3-150 bar; T = 600 K, p = 3-150 bar) are reported. The results obtained at elevated pressures are found to be in good agreement with existing literature data. The observed falloff behavior is analyzed in terms of the Troe formalism taking into account two reaction channels: one yielding HNO3 and one yielding HOONO. It is found that the extracted parameters are in agreement with rate constants for vibrational relaxation and isotopic scrambling as well as with experimentally determined branching ratios. Based on our analysis we determine falloff parameters to calculate the rate constant for atmospheric conditions.
Collapse
Affiliation(s)
- Horst Hippler
- Lehrstuhl für Molekulare Physikalische Chemie, Universität Karlsruhe, Kaiserstrasse 12, D-76128 Karlsruhe, Germany.
| | | | | | | |
Collapse
|
18
|
Sadanaga Y, Kondo S, Hashimoto K, Kajii Y. Measurement of the rate coefficient for the OH+NO2 reaction under the atmospheric pressure: Its humidity dependence. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2005.12.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
19
|
Liu Y, Lohr LL, Barker JR. Quasiclassical Trajectory Simulations of OH(v) + NO2 → HONO2* → OH(v‘) + NO2: Capture and Vibrational Deactivation Rate Constants. J Phys Chem A 2005; 110:1267-77. [PMID: 16435787 DOI: 10.1021/jp053099a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Quasiclassical trajectory calculations are used to investigate the dynamics of the OH(v) + NO(2) --> HONO(2) --> OH(v') + NO(2) recombination/dissociation reaction on an analytic potential energy surface (PES) that gives good agreement with the known structure and vibrational frequencies of nitric acid. The calculated recombination rate constants depend only weakly on temperature and on the initial vibrational energy level of OH(v). The magnitude of the recombination rate constant is sensitive to the potential function describing the newly formed bond and to the switching functions in the PES that attenuate inter-mode interactions at long range. The lifetime of the nascent excited HONO(2) depends strongly not only on its internal energy but also on the identity of the initial state, in disagreement with statistical theory. This disagreement is probably due to the effects of slow intramolecular vibrational energy redistribution (IVR) from the initially excited OH stretching mode. The vibrational energy distribution of product OH(v') radicals is different from statistical distributions, a result consistent with the effects of slow IVR. Nonetheless, the trajectory results predict that vibrational deactivation of OH(v) via the HONO(2) transient complex is approximately 90% efficient, almost independent of initial OH(v) vibrational level, in qualitative agreement with recent experiments. Tests are also carried out using the HONO(2) PES, but assuming the weaker O-O bond strength found in HOONO (peroxynitrous acid). In this case, the predicted vibrational deactivation efficiencies are significantly lower and depend strongly on the initial vibrational state of OH(v), in disagreement with experiments. This disagreement suggests that the actual HOONO PES may contain more inter-mode coupling than found in the present model PES, which is based on HONO(2). For nitric acid, the measured vibrational deactivation rate constant is a useful proxy for the recombination rate, but IVR randomization of energy is not complete, suggesting that the efficacy of the proxy method must be evaluated on a case-by-case basis.
Collapse
Affiliation(s)
- Yong Liu
- Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143, USA
| | | | | |
Collapse
|
20
|
Abstract
The reaction of hydroxyl radicals with hydrogen chloride (reaction 1) has been studied experimentally using a pulsed-laser photolysis/pulsed-laser-induced fluorescence technique over a wide range of temperatures, 298-1015 K, and at pressures between 5.33 and 26.48 kPa. The bimolecular rate coefficient data set obtained for reaction 1 demonstrates no dependence on pressure and exhibits positive temperature dependence that can be represented with modified three-parameter Arrhenius expression within the experimental temperature range: k1 = 3.20 x 10(-15)T0.99 exp(-62 K/T) cm3 molecule(-1) s(-1). The potential-energy surface has been studied using quantum chemical methods, and a transition-state theory model has been developed for the reaction 1 on the basis of calculations and experimental data. The model results in modified three-parameter Arrhenius expressions: k1 = 8.81 x 10(-16)T1.16 exp(58 K/T) cm3 molecule(-1) s(-1) for the temperature range 200-1015 K and k1 = 6.84 x 10(-19)T2.12 exp(646 K/T) cm3 molecule(-1) s(-1) for the temperature dependence of the reaction 1 rate coefficient extrapolation to high temperatures (500-3000 K). A temperature dependence of the rate coefficient of the Cl + H2O --> HCl + OH reaction has been derived on the basis of the experimental data, modeling, and thermochemical information.
Collapse
Affiliation(s)
- Mikhail G Bryukov
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | | | | |
Collapse
|
21
|
Butkovskaya NI, Kukui A, Pouvesle N, Le Bras G. Formation of Nitric Acid in the Gas-Phase HO2 + NO Reaction: Effects of Temperature and Water Vapor. J Phys Chem A 2005; 109:6509-20. [PMID: 16833996 DOI: 10.1021/jp051534v] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A high-pressure turbulent flow reactor coupled with a chemical ionization mass spectrometer was used to investigate the minor channel (1b) producing nitric acid, HNO3, in the HO2 + NO reaction for which only one channel (1a) is known so far: HO2 + NO --> OH + NO2 (1a), HO2 + NO --> HNO3 (1b). The reaction has been investigated in the temperature range 223-298 K at a pressure of 200 Torr of N2 carrier gas. The influence of water vapor has been studied at 298 K. The branching ratio, k1b/k1a, was found to increase from (0.18(+0.04/-0.06))% at 298 K to (0.87(+0.05/-0.08))% at 223 K, corresponding to k1b = (1.6 +/- 0.5) x 10(-14) and (10.4 +/- 1.7) x 10(-14) cm3 molecule(-1) s(-1), respectively at 298 and 223 K. The data could be fitted by the Arrhenius expression k1b = 6.4 x 10(-17) exp((1644 +/- 76)/T) cm3 molecule(-1) s(-1) at T = 223-298 K. The yield of HNO3 was found to increase in the presence of water vapor (by 90% at about 3 Torr of H2O). Implications of the obtained results for atmospheric radicals chemistry and chemical amplifiers used to measure peroxy radicals are discussed. The results show in particular that reaction 1b can be a significant loss process for the HO(x) (OH, HO2) radicals in the upper troposphere.
Collapse
Affiliation(s)
- N I Butkovskaya
- CNRS, Laboratoire de Combustion et Systèmes Réactifs, 1C Av. de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | | | | | | |
Collapse
|
22
|
D'Ottone L, Bauer D, Campuzano-Jost P, Fardy M, Hynes AJ. Kinetic and mechanistic studies of the recombination of OH with NO2: Vibrational deactivation, isotopic scrambling and product isomer branching ratios. Faraday Discuss 2005; 130:111-23; discussion 125-51, 519-24. [PMID: 16161781 DOI: 10.1039/b417458p] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetics and mechanism of the three-body recombination of OH with NO2 were studied using a pulsed laser photolysis pulsed laser induced fluorescence technique. The rate coefficients for deactivation of vibrationally excited OH (v = 1-5) by NO2 were found to be independent of vibrational level with a value of (6.4 +/- 0.3) x 10(-11) cm3 molecule s (-1) at 298 K. The rate coefficient for reaction of 18OH with NO2 was measured and found to be much faster than for unlabeled OH with a "zero pressure" rate of 1 x 10(-11) cm3 molecule(-1) s(-1) at 298 K and 273 K. Observation of temporal profiles of 16OH and 18OH suggest that isotopic scrambling in the initially formed [H18ON16O2] complex is complete on the microsecond time scale of our experiments. The rate coefficient for reaction of unlabeled OH with NO2 was measured at 413 K in 400 Torr of He. Biexponential temporal profiles were obtained and are consistent with a 10 +/- 3% yield of the weakly bound HOONO isomer.
Collapse
Affiliation(s)
- Luca D'Ottone
- University of Miami, Rosenstiel School of Marine and Atmospheric Science, Division of Marine and Atmospheric Chemistry, 4600 Rickenbacker Causeway, Miami FL 33149, USA
| | | | | | | | | |
Collapse
|
23
|
Abstract
The kinetics of the recombination reaction, OH+NO+(M) --> Products have been investigated by the Pulsed Laser Photolysis-Laser Induced Fluorescence (PLP-LIF) technique in nitrogen and helium buffer gases at room temperature and as a function of pressure (30-900 Torr). Our values for the absolute rate coefficient in nitrogen at room temperature are in excellent agreement with the JPL 2003 and with the current IUPAC 2003 recommendations. With the exception of a very old study by Overend, our rate constants in helium are the only ones to cover the range of pressures between 30 and 900 Torr.
Collapse
Affiliation(s)
- Giovanni Di Loreto
- Università La Sapienza, Facoltà di Farmacia, P.le Aldo Moro 5, 00185, Rome, Italy
| | | |
Collapse
|
24
|
Bryukov MG, Knyazev VD, Lomnicki SM, McFerrin CA, Dellinger B. Temperature-Dependent Kinetics of the Gas-Phase Reactions of OH with Cl2, CH4, and C3H8. J Phys Chem A 2004. [DOI: 10.1021/jp047340h] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mikhail G. Bryukov
- Chemistry Department, Louisiana State University, Baton Rouge, Louisiana 70803, and Research Center for Chemical Kinetics, Department of Chemistry, The Catholic University of America, Washington, D.C. 20064
| | - Vadim D. Knyazev
- Chemistry Department, Louisiana State University, Baton Rouge, Louisiana 70803, and Research Center for Chemical Kinetics, Department of Chemistry, The Catholic University of America, Washington, D.C. 20064
| | - Slawomir M. Lomnicki
- Chemistry Department, Louisiana State University, Baton Rouge, Louisiana 70803, and Research Center for Chemical Kinetics, Department of Chemistry, The Catholic University of America, Washington, D.C. 20064
| | - Cheri A. McFerrin
- Chemistry Department, Louisiana State University, Baton Rouge, Louisiana 70803, and Research Center for Chemical Kinetics, Department of Chemistry, The Catholic University of America, Washington, D.C. 20064
| | - Barry Dellinger
- Chemistry Department, Louisiana State University, Baton Rouge, Louisiana 70803, and Research Center for Chemical Kinetics, Department of Chemistry, The Catholic University of America, Washington, D.C. 20064
| |
Collapse
|
25
|
Golden DM, Barker JR, Lohr LL. Master Equation Models for the Pressure- and Temperature-Dependent Reactions HO + NO2 → HONO2 and HO + NO2 → HOONO. J Phys Chem A 2003. [DOI: 10.1021/jp0353183] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David M. Golden
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305, Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143, and Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055
| | - John R. Barker
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305, Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143, and Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055
| | - Lawrence L. Lohr
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305, Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143, and Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055
| |
Collapse
|
26
|
Affiliation(s)
- John R Barker
- Department of Atmospheric, Oceanic and Space Sciences and Department of Chemistry, University of Michigan, Ann Arbor, MI 48109-2143, USA.
| | | |
Collapse
|
27
|
Affiliation(s)
- Jürgen Troe
- Institut für Physikalische Chemie, Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany
| |
Collapse
|
28
|
Affiliation(s)
- Ian W M Smith
- School of Chemical Sciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| |
Collapse
|
29
|
Bean BD, Mollner AK, Nizkorodov SA, Nair G, Okumura M, Sander SP, Peterson KA, Francisco JS. Cavity Ringdown Spectroscopy of cis-cis HOONO and the HOONO/HONO2 Branching Ratio in the Reaction OH + NO2 + M. J Phys Chem A 2003. [DOI: 10.1021/jp034407c] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brian D. Bean
- Arthur Amos Noyes Laboratory of Chemical Physics, MC 127-72, California Institute of Technology, Pasadena, California 91125
| | - Andrew K. Mollner
- Arthur Amos Noyes Laboratory of Chemical Physics, MC 127-72, California Institute of Technology, Pasadena, California 91125
| | - Sergey A. Nizkorodov
- Arthur Amos Noyes Laboratory of Chemical Physics, MC 127-72, California Institute of Technology, Pasadena, California 91125
| | - Gautham Nair
- Arthur Amos Noyes Laboratory of Chemical Physics, MC 127-72, California Institute of Technology, Pasadena, California 91125
| | - Mitchio Okumura
- Arthur Amos Noyes Laboratory of Chemical Physics, MC 127-72, California Institute of Technology, Pasadena, California 91125
| | - Stanley P. Sander
- NASA Jet Propulsion Laboratory, MC 183-901, California Institute of Technology, Pasadena, California 91109
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630
| | | |
Collapse
|
30
|
Kukui A, Borissenko D, Laverdet G, Le Bras G. Gas-Phase Reactions of OH Radicals with Dimethyl Sulfoxide and Methane Sulfinic Acid Using Turbulent Flow Reactor and Chemical Ionization Mass Spectrometry. J Phys Chem A 2003. [DOI: 10.1021/jp0276911] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Alexander Kukui
- Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1c av. de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Dmitri Borissenko
- Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1c av. de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Gérard Laverdet
- Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1c av. de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Georges Le Bras
- Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1c av. de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| |
Collapse
|
31
|
Bauer D, D’ottone L, Campuzano-jost P, Hynes A. Gas phase elemental mercury: a comparison of LIF detection techniques and study of the kinetics of reaction with the hydroxyl radical. J Photochem Photobiol A Chem 2003; 157:247-56. [DOI: 10.1016/s1010-6030(03)00065-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|