Mechanism of OH Radical Reactions with HCN and CH3CN:  OH Regeneration in the Presence of O2

2007 ◽  
Vol 111 (23) ◽  
pp. 5086-5091 ◽  
Author(s):  
Annia Galano
Keyword(s):  
Radical Reactions ◽  
Oh Radical

Mechanism of OH radical reactions with thymine and uracil derivatives

1986 ◽  
Vol 108 (19) ◽  
pp. 5968-5972 ◽  
Author(s):  
Slobodan V. Jovanovic ◽  
Michael G. Simic
Keyword(s):  
Radical Reactions ◽  
Oh Radical ◽  
Uracil Derivatives

scholarly journals Chemical insights, explicit chemistry, and yields of secondary organic aerosol from OH radical oxidation of methylglyoxal and glyoxal in the aqueous phase

2013 ◽  
Vol 13 (17) ◽  
pp. 8651-8667 ◽  
Author(s):  
Y. B. Lim ◽  
Y. Tan ◽  
B. J. Turpin
Keyword(s):  
Acetic Acid ◽  
Aqueous Phase ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Water Soluble ◽  
Oxidation Products ◽  
Radical Reactions ◽  
Organic Radical ◽  
Oh Radical ◽  
Radical Oxidation

Abstract. Atmospherically abundant, volatile water-soluble organic compounds formed through gas-phase chemistry (e.g., glyoxal (C2), methylglyoxal (C3), and acetic acid) have great potential to form secondary organic aerosol (SOA) via aqueous chemistry in clouds, fogs, and wet aerosols. This paper (1) provides chemical insights into aqueous-phase OH-radical-initiated reactions leading to SOA formation from methylglyoxal and (2) uses this and a previously published glyoxal mechanism (Lim et al., 2010) to provide SOA yields for use in chemical transport models. Detailed reaction mechanisms including peroxy radical chemistry and a full kinetic model for aqueous photochemistry of acetic acid and methylglyoxal are developed and validated by comparing simulations with the experimental results from previous studies (Tan et al., 2010, 2012). This new methylglyoxal model is then combined with the previous glyoxal model (Lim et al., 2010), and is used to simulate the profiles of products and to estimate SOA yields. At cloud-relevant concentrations (~ 10−6 − ~ 10−3 M; Munger et al., 1995) of glyoxal and methylglyoxal, the major photooxidation products are oxalic acid and pyruvic acid, and simulated SOA yields (by mass) are ~ 120% for glyoxal and ~ 80% for methylglyoxal. During droplet evaporation oligomerization of unreacted methylglyoxal/glyoxal that did not undergo aqueous photooxidation could enhance yields. In wet aerosols, where total dissolved organics are present at much higher concentrations (~ 10 M), the major oxidation products are oligomers formed via organic radical–radical reactions, and simulated SOA yields (by mass) are ~ 90% for both glyoxal and methylglyoxal. Non-radical reactions (e.g., with ammonium) could enhance yields.

Kinetic study of OH radical reactions with chlorobutane isomers at 298K

1998 ◽  
Vol 296 (3-4) ◽  
pp. 350-356 ◽  
Author(s):  
J.C. Loison ◽  
L. Ley ◽  
R. Lesclaux
Keyword(s):  
Kinetic Study ◽  
Radical Reactions ◽  
Oh Radical

OH radical reactions with ethanolamines: formation of reducing as well as oxidizing radicals

2004 ◽  
Vol 30 (9) ◽  
pp. 837-845 ◽  
Author(s):  
Kamal Kishore ◽  
G R Dey ◽  
T Mukherjee
Keyword(s):  
Radical Reactions ◽  
Oh Radical

Rates of OH radical reactions. III. The reaction OH+C2H4+M at 296 °K

1977 ◽  
Vol 67 (2) ◽  
pp. 674-679 ◽  
Author(s):  
Ralph Overend ◽  
George Paraskevopoulos
Keyword(s):  
Radical Reactions ◽  
Oh Radical

OH radical reactions with ethanolamines: formation of reducing as well as oxidizing radicals

2005 ◽  
Vol 31 (9) ◽  
pp. 875-884 ◽  
Author(s):  
Kamal Kishore ◽  
G R Dey ◽  
T Mukherjee
Keyword(s):  
Radical Reactions ◽  
Oh Radical

Tropospheric and stratospheric sinks for halocarbons: Photooxidation, O(1D) atom, and OH radical reactions

1976 ◽  
Vol 81 (33) ◽  
pp. 5765-5770 ◽  
Author(s):  
R. Atkinson ◽  
G. M. Breuer ◽  
J. N. Pitts ◽  
H. L. Sandoval
Keyword(s):  
Radical Reactions ◽  
Oh Radical
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