Atmospheric Chemistry of Pentafluorophenol: Kinetics and Mechanism of the Reactions of Cl Atoms and OH Radicals

被引：3

作者：

Hasager, Freja ^{[1
]}

Andersen, Simone Thirstrup ^{[1
]}

Hass, Sofie Askjaer ^{[1
]}

Andersen, Mads P. Sulbaek ^{[1
,2
]}

Nielsen, Ole John ^{[1
]}

机构：

[1] Univ Copenhagen, Copenhagen Ctr Atmospher Res, Dept Chem, DK-2100 Copenhagen O, Denmark

[2] Calif State Univ Northridge, Dept Chem & Biochem, Northridge, CA 91330 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2019年 / 123卷 / 47期

关键词：

GAS-PHASE REACTION; QUANTITATIVE-ANALYSIS; ACETYLENE; CHLORINE; AIR;

D O I：

10.1021/acs.jpca.9b07781

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fourier transform infrared smog chamber techniques were used to study the kinetics and mechanisms of the reactions of Cl atoms and OH radicals with pentafluorophenol (C6F5OH) in 700 Torr total pressure of air or N-2 diluent at 296 +/- 2 K. Rate constants k(OH + C6F5OH) = (6.88 +/- 1.37) x 10(-12) cm(3) molecule(-1) s(-1) and k(Cl + C6F5OH) = (2.52 +/- 0.31) x 10(-11) cm(3) s(-1) molecule(-1) in 700 Torr air diluent were determined. In 700 Torr N-2, the rate constant for the reaction of C6F5OH with Cl atoms is linearly dependent on the Cl atom concentration. Product studies on this reaction in both 700 Torr air and 700 Torr N-2 diluent show the formation of nonconjugated products. The photolysis constant of C6F5OH was determined by 254 nm UV irradiation of a C6F5OH and CH3CHO mixture in 700 Torr air or N-2 at 296 +/- 2 K and yielded a photolysis rate constant of J(C6F5OH) = (2.83 +/- 0.25) x 10(-3) s(-1). Results are discussed with respect to the atmospheric chemistry of other halogenated aromatic species.

引用

页码：10315 / 10322

页数：8

共 23 条

[1] Poly(ethylene glycol)-Based Stable Isotope Labeling Reagents for the Quantitative Analysis of Low Molecular Weight Metabolites by LC-MS
Abello, Nicolas
Geurink, Paul P.
van der Toorn, Marco
van Oosterhout, Antoon J. M.
Lugtenburg, Johan
van der Marel, Gijs A.
Kerstjens, Huib A. M.
Postma, Dirkje S.
Overkleeft, Hermen S.
Bischoff, Rainer
[J]. ANALYTICAL CHEMISTRY, 2008, 80 (23) : 9171 - 9180
[2] Preparation of succinimidyl and pentafluorophenyl active esters of 5- and 6-carboxyfluorescein
Adamczyk, M
Fishpaugh, JR
Heuser, KJ
[J]. BIOCONJUGATE CHEMISTRY, 1997, 8 (02) : 253 - 255
[3] Atmospheric chemistry of hexa- and penta-fluorobenzene: UV photolysis and kinetics and mechanisms of the reactions of Cl atoms and OH radicals
Andersen, Mads P. Sulbaek
Lengkong, Jonathan W.
Wallberg, Jens
Hasager, Freja
Vo, Karen
Andersen, Simone Thirstrup
Kjaergaard, Henrik G.
Wallington, Timothy J.
Nielsen, Ole John
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2018, 20 (45) : 28796 - 28809
[4] Kinetics and mechanism of the gas-phase reaction of Cl atoms and OH radicals with fluorobenzene at 296 K
Andersen, MPS
Nielsen, OJ
Hurley, MD
Wallington, TJ
[J]. JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (34) : 7779 - 7787
[5] Andersen MPS, 2001, CHEM PHYS LETT, V350, P423, DOI 10.1016/S0009-2614(01)01318-5
[6] [Anonymous], 1999, Chemistry of the upper and lower atmosphere: theory, experiments and applications [M]
[7] Evaluated kinetic and photochemical data for atmospheric chemistry: Volume II - gas phase reactions of organic species
Atkinson, R.
Baulch, D. L.
Cox, R. A.
Crowley, J. N.
Hampson, R. F.
Hynes, R. G.
Jenkin, M. E.
Rossi, M. J.
Troe, J.
[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS, 2006, 6 : 3625 - 4055
[8] Calvert J.G., 2008, Mechanisms of Atmospheric Oxidation of the Alkanes
[9] Calvert J.G., 2011, MECH ATMOSPHERIC OXI
[10] Calvert J.G., 2002, The mechanism of atmospheric oxidation of aromatics hydrocarbons

← 1 2 3 →