Polar effect in the reaction of CH3O with HBr

被引：1

作者：

Farkas, E ^{[1
]}

Kovács, G ^{[1
]}

Imrik, K ^{[1
]}

Szilágyi, I ^{[1
]}

Dóbé, S ^{[1
]}

Márta, F ^{[1
]}

机构：

[1] Hungarian Acad Sci, Chem Res Ctr, H-1025 Budapest, Hungary

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2004年 / 83卷 / 02期

基金：

匈牙利科学研究基金会;

关键词：

rate constant; CH3O; HBr;

D O I：

10.1023/B:REAC.0000046092.84948.e0

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：

The discharge flow method with laser induced fluorescence detection of CH3O was applied to determine the rate constant, k(1), for the reaction CH3O+HBr --> products k(1) (298 K) = (8.41 +/- 0.80(1alpha)) 10(11) cm(3) mol(-1) s(-1). The unusually large k(1) value was explained by the polar nature of the transition state of the reaction.

引用

页码：315 / 320

页数：6

共 17 条

[1]

[Anonymous], 2003, NIST CHEM WEBBOOK

[2] 3 METHODS TO MEASURE RH BOND-ENERGIES [J].

BERKOWITZ, J ;

ELLISON, GB ;

GUTMAN, D .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (11) :2744-2765

[3] Atmospheric fate of small alkoxy radicals: recent experimental and theoretical advances [J].

Devolder, P .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 157 (2-3) :137-147

[4] KINETICS AND MECHANISM OF THE REACTION OF CH3O WITH NO [J].

DOBE, S ;

LENDVAY, G ;

SZILAGYI, I ;

BERCES, T .

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, 1994, 26 (09) :887-901

[5] Direct kinetic studies of the reactions Br+CH3OH and CH2OH+HBr: The heat of formation of CH2OH [J].

Dobe, S ;

Berces, T ;

Turanyi, T ;

Marta, F ;

Grussdorf, J ;

Temps, F ;

Wagner, HG .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (51) :19864-19873

[6] KINETICS OF THE REACTION BETWEEN METHOXYL RADICALS AND HYDROGEN-ATOMS [J].

DOBE, S ;

BERCES, T ;

SZILAGYI, I .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (15) :2331-2336

[7] Rate constants for the reactions of CH3O with CH2O, CH3CHO and i-C4H10 [J].

Fittschen, C ;

Delcroix, B ;

Gomez, N ;

Devolder, P .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1998, 95 (10) :2129-2142

[8] Density-functional study of the equilibrium structures, vibrational spectra, and energetics of CH3OBr and CH3BrO [J].

Guha, S ;

Francisco, JS .

JOURNAL OF PHYSICAL CHEMISTRY A, 1998, 102 (48) :9970-9974

[9]

HOYERMANN KH, 1975, PHYS CHEM B, V6, P931

[10] Laser spectrometry and kinetics of selected elementary reactions of the acetonyl radical [J].

Imrik, K ;

Farkas, E ;

Vasvári, G ;

Szilágyi, I ;

Sarzynski, D ;

Dóbé, S ;

Bérces, T ;

Márta, F .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2004, 6 (15) :3958-3968

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