EFFICIENCY OF FORMATION OF CH3O IN THE REACTION OF CH3O2 WITH CLO

被引：25

作者：

BIGGS, P

CANOSAMAS, CE

FRACHEBOUD, JM

SHALLCROSS, DE

WAYNE, RP

机构：

[1] Physical Chemistry Laboratory, Oxford, South Parks Road

来源：

GEOPHYSICAL RESEARCH LETTERS | 1995年 / 22卷 / 10期

关键词：

D O I：

10.1029/95GL01011

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A discharge-flow apparatus was used to determine the branching ratio a for the channel of the reaction of ClO with CH3O2 that leads to the formation of CH3O. The experiments were performed at 2 Torr pressure and at room temperature. ClO was the excess reactant and was measured mass spectrometrically; CH3O was detected by laser-induced fluorescence. The value of a was shown to depend on the fraction beta of the reaction of CH3O2 with Cl atoms that leads to the formation of CH3O. For beta = 0, 0.5 and 1, the derived values of alpha are 0.28 +/- 0.07, 0.32 +/- 0.08 and 0.42 +/- 0.09, respectively. Comparison with other published results suggests the possibility of three significant product channels for the reaction of CH3O2 with ClO.

引用

收藏

页码：1221 / 1224

页数：4

相关论文

共 17 条

[1] KINETICS OF O-3 DESTRUCTION BY CLO AND BRO WITHIN THE ANTARCTIC VORTEX - AN ANALYSIS BASED ON INSITU ER-2 DATA [J].

ANDERSON, JG ;

BRUNE, WH ;

LLOYD, SA ;

TOOHEY, DW ;

SANDER, SP ;

STARR, WL ;

LOEWENSTEIN, M ;

PODOLSKE, JR .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1989, 94 (D9) :11480-11520

[2] EVALUATED KINETIC AND PHOTOCHEMICAL DATA FOR ATMOSPHERIC CHEMISTRY .3. IUPAC SUBCOMMITTEE ON GAS KINETIC DATA EVALUATION FOR ATMOSPHERIC CHEMISTRY [J].

ATKINSON, R ;

BAULCH, DL ;

COX, RA ;

HAMPSON, RF ;

KERR, JA ;

TROE, J .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1989, 18 (02) :881-1097

[3] INVESTIGATION INTO THE PRESSURE-DEPENDENCE BETWEEN 1 AND 10 TORR OF THE REACTIONS OF NO2 WITH CH3 AND CH3O [J].

BIGGS, P ;

CANOSAMAS, CE ;

FRACHEBOUD, JM ;

PARR, AD ;

SHALLCROSS, DE ;

WAYNE, RP ;

CARALP, F .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (23) :4163-4169

[4] INVESTIGATION INTO THE KINETICS AND MECHANISM OF THE REACTION OF NO3 WITH CH3 AND CH3O AT 298-K BETWEEN 0.6-TORR AND 8.5-TORR - IS THERE A CHAIN DECOMPOSITION MECHANISM IN OPERATION [J].

BIGGS, P ;

CANOSAMAS, CE ;

FRACHEBOUD, JM ;

SHALLCROSS, DE ;

WAYNE, RP .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (09) :1197-1204

[5]

BRIDIER I, 1991, THESIS BORDEAUX U

[6] CH3OCL - UV/VISIBLE ABSORPTION CROSS-SECTIONS, J-VALUES AND ATMOSPHERIC SIGNIFICANCE [J].

CROWLEY, JN ;

HELLEIS, F ;

MULLER, R ;

MOORTGAT, GK ;

CRUTZEN, PJ ;

ORLANDO, JJ .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1994, 99 (D10) :20683-20688

[7] ON THE POTENTIAL IMPORTANCE OF THE GAS-PHASE REACTION CH3O2 + CLO -] CLOO + CH3O AND THE HETEROGENEOUS REACTION HOCL + HCL -] H2O + CL2 IN OZONE HOLE CHEMISTRY [J].

CRUTZEN, PJ ;

MULLER, R ;

BRUHL, C ;

PETER, T .

GEOPHYSICAL RESEARCH LETTERS, 1992, 19 (11) :1113-1116

[8]

DAELE V, 1994, THESIS U PARIS 7

[9]

FROST MJ, 1990, J CHEM SOC FARADAY T, V86, P1757, DOI 10.1039/ft9908601757

[10] TEMPERATURE-DEPENDENT CH3OCL FORMATION IN THE REACTION BETWEEN CH3O2 AND CLO [J].

HELLEIS, F ;

CROWLEY, J ;

MOORTGAT, G .

GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (17) :1795-1798