Kinetics of OH Radical Reaction with Anthracene and Anthracene-d10

2006 ◽  
Vol 110 (10) ◽  
pp. 3559-3566 ◽  
Author(s):  
Rajeshwar Ananthula ◽  
Takahiro Yamada ◽  
Philip H. Taylor
Keyword(s):  
Radical Reaction ◽  
Oh Radical ◽  
Kinetics Of

Kinetics of OH radical reaction with phenanthrene: New absolute rate measurements and comparison with other PAHs

2007 ◽  
Vol 39 (11) ◽  
pp. 629-637 ◽  
Author(s):  
Rajeshwar Ananthula ◽  
Takahiro Yamada ◽  
Philip H. Taylor
Keyword(s):  
Radical Reaction ◽  
Oh Radical ◽  
Absolute Rate ◽  
Kinetics Of

Kinetics of gas phase OH radical reaction with thiophene in the 272–353 K temperature range: A laser induced fluorescence study

2017 ◽  
Vol 682 ◽  
pp. 154-159 ◽  
Author(s):  
Monali N. Kawade ◽  
D. Srinivas ◽  
Hari P. Upadhyaya
Keyword(s):  
Gas Phase ◽  
Radical Reaction ◽  
Laser Induced Fluorescence ◽  
Oh Radical ◽  
Fluorescence Study ◽  
Temperature Range ◽  
Kinetics Of

Kinetics of OH radical reaction with allyl alcohol (H2CCHCH2OH) and propargyl alcohol (HCCCH2OH) studied by LIF

2001 ◽  
Vol 349 (3-4) ◽  
pp. 279-285 ◽  
Author(s):  
Hari P Upadhyaya ◽  
Awadhesh Kumar ◽  
P.D Naik ◽  
A.V Sapre ◽  
J.P Mittal
Keyword(s):  
Allyl Alcohol ◽  
Radical Reaction ◽  
Propargyl Alcohol ◽  
Oh Radical ◽  
Kinetics Of

Investigation of OH radical kinetics with glycine, alanine, serine and threonine in the aqueous phase

2021 ◽  
Author(s):  
Liang Wen ◽  
Thomas Schaefer ◽  
Hartmut Herrmann
Keyword(s):  
Amino Acids ◽  
Aqueous Phase ◽  
Rate Constants ◽  
Density Functional ◽  
Flash Photolysis ◽  
Biological Activities ◽  
Radical Reaction ◽  
Atmospheric Effects ◽  
Oh Radical ◽  
Kinetics Of

<p>Amino acids are key substances in biological activities and can be emitted into the atmosphere as constituents of primary aerosols. Understanding the radical kinetics of amino acids is necessary to evaluate their atmospheric effects. In the present study, the hydroxyl radical (OH) reaction kinetics of glycine, alanine, serine and threonine were investigated in the aqueous phase. The temperature and pH dependent rate constants were measured by a laser flash photolysis-long path absorption setup using the competition kinetics method. Based on the measurements and speciation calculations, the OH radical reaction rate constants of the fully protonated (H<sub>2</sub>A<sup>+</sup>) and neutral (HA<sup>±</sup>) form were determined. The following T-dependent Arrhenius expressions were derived for the OH radical reactions with glycine, <em>k</em>(<em>T</em>, H<sub>2</sub>A<sup>+</sup>) = (9.1 ± 0.3) × 10<sup>9</sup> × exp[(-2360 ± 230 K)/<em>T</em>], <em>k</em>(<em>T</em>, HA<sup>±</sup>) = (1.3 ± 0.1) × 10<sup>10</sup> × exp[(-2040 ± 240 K)/<em>T</em>]; alanine, <em>k</em>(<em>T</em>, H<sub>2</sub>A<sup>+</sup>) = (1.0 ± 0.1) × 10<sup>9</sup> × exp[(-1030 ± 340 K)/<em>T</em>], <em>k</em>(<em>T</em>, HA<sup>±</sup>) = (6.8 ± 0.4) × 10<sup>10</sup> × exp[(-2020 ± 370 K)/<em>T</em>]; serine, <em>k</em>(<em>T</em>, H<sub>2</sub>A<sup>+</sup>) = (1.1 ± 0.1) × 10<sup>9</sup> × exp[(-470 ± 150 K)/<em>T</em>], <em>k</em>(<em>T</em>, HA<sup>±</sup>) = (3.9 ± 0.1) × 10<sup>9</sup> × exp[(-720 ± 130 K)/<em>T</em>]; and threonine, <em>k</em>(<em>T</em>, H<sub>2</sub>A<sup>+</sup>) = (5.0 ± 0.1) × 10<sup>10</sup> × exp[(-1500 ± 100 K)/<em>T</em>], <em>k</em>(<em>T</em>, HA<sup>±</sup>) = (3.3 ± 0.1) × 10<sup>10</sup> × exp[(-1320 ± 90 K)/<em>T</em>] (in units of L mol<sup>-1</sup> s<sup>-1</sup>).</p> <p>The density functional theory calculation was performed using GAUSSIAN to simulate the energy barriers (<em>E<sub>Barrier</sub></em>) of OH radical induced H-atom abstraction. According to the simulated results, amino and carboxyl group increase the <em>E<sub>Barrier</sub></em> at the adjacent C‑atom and thus reduce the OH radical reactivity. Hydroxide and methyl group decrease the <em>E<sub>Barrier</sub></em> at the adjacent C-atom, leading to an increase in the OH radical rate constant.</p>

Kinetics of the OH Radical Reaction with Fulvenallene from 298 to 450 K

2015 ◽  
Vol 6 (24) ◽  
pp. 4997-5001 ◽  
Author(s):  
Juddha Thapa ◽  
Michael Spencer ◽  
Novruz G. Akhmedov ◽  
Fabien Goulay
Keyword(s):  
Radical Reaction ◽  
Oh Radical ◽  
Kinetics Of

Kinetics of the Production of Castor Oil Maleate through the Autocatalyzed Thermal Reaction and the Free Radical Reaction

2017 ◽  
Vol 50 (2) ◽  
pp. 112-121 ◽  
Author(s):  
Dayanne L. H. Maia ◽  
Elenilson G. Alves Filho ◽  
Antonino F. Barros Junior ◽  
Fabiano A. N. Fernandes
Keyword(s):  
Free Radical ◽  
Castor Oil ◽  
Radical Reaction ◽  
Thermal Reaction ◽  
Free Radical Reaction ◽  
Kinetics Of

scholarly journals Kinetics of 1,4-Hydrogen Migration in the Alkyl Radical Reaction Class

2009 ◽  
Vol 113 (8) ◽  
pp. 1564-1573 ◽  
Author(s):  
Barbara Bankiewicz ◽  
Lam K. Huynh ◽  
Artur Ratkiewicz ◽  
Thanh N. Truong
Keyword(s):  
Alkyl Radical ◽  
Radical Reaction ◽  
Hydrogen Migration ◽  
Kinetics Of
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