Relative formation rates of 50O3 and 52O3 in 16O-18O mixtures

被引：91

作者：

Janssen, C ^{[1
]}

Guenther, J ^{[1
]}

Krankowsky, D ^{[1
]}

Mauersberger, K ^{[1
]}

机构：

[1] Max Planck Inst Kernphys, Div Atmospher Phys, D-69029 Heidelberg, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 111卷 / 16期

关键词：

D O I：

10.1063/1.480045

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：

Tunable diode laser (TDL) and mass spectrometry have been combined to measure relative formation rate coefficients of each of the four channels contributing to ozone of mass 50 u and 52 u produced in O-16-O-18 mixtures. Only one channel has a large rate coefficient advantage causing almost exclusively the observed isotope enrichment. Collisions to form ozone are end-on reactions. Molecular symmetry plays no apparent role in the ozone isotope enrichment process, regardless, whether or not ozone is produced in collisions with homo- or heteronuclear molecular oxygen. The oxygen isotope exchange process may hold a key in explaining the rate coefficient results. (C) 1999 American Institute of Physics. [S0021-9606(99)02940-2].

引用

页码：7179 / 7182

页数：4

共 20 条

[1] Surprising rate coefficients for four isotopic variants of O+O-2+M [J].

Anderson, SM ;

Hulsebusch, D ;

Mauersberger, K .

JOURNAL OF CHEMICAL PHYSICS, 1997, 107 (14) :5385-5392

[2] LABORATORY MEASUREMENTS OF OZONE ISOTOPOMERS BY TUNABLE DIODE-LASER ABSORPTION-SPECTROSCOPY [J].

ANDERSON, SM ;

MORTON, J ;

MAUERSBERGER, K .

CHEMICAL PHYSICS LETTERS, 1989, 156 (2-3) :175-180

[3]

ANDERSON SM, 1992, ACS SYM SER, V502, P155

[4] Photolysis of ozone at 693 nm in solid oxygen. Isotopic effects in ozone reformation [J].

Bahou, M ;

SchriverMazzuoli, L ;

CamyPeyret, C ;

Schriver, A .

CHEMICAL PHYSICS LETTERS, 1997, 273 (1-2) :31-36

[5] MASS-INDEPENDENT OXYGEN ISOTOPIC FRACTIONATION IN A MICROWAVE PLASMA [J].

BAINSSAHOTA, SK ;

THIEMENS, MH .

JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (16) :4370-4374

[6] THE UPSILON-1 AND UPSILON-3 BANDS OF (O3)-O-3 AND (OOO)-O-18-O-16-O-18 - LINE POSITIONS AND INTENSITIES [J].

FLAUD, JM ;

CAMYPEYRET, C ;

DEVI, VM ;

RINSLAND, CP ;

SMITH, MAH .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1987, 122 (01) :221-228

[7] An explanation for symmetry-induced isotopic fractionation in ozone [J].

Gellene, GI .

SCIENCE, 1996, 274 (5291) :1344-1346

[8] A NON-MASS-DEPENDENT OXYGEN ISOTOPE EFFECT IN THE PRODUCTION OF OZONE FROM MOLECULAR-OXYGEN - THE ROLE OF MOLECULAR SYMMETRY IN ISOTOPE CHEMISTRY [J].

HEIDENREICH, JE ;

THIEMENS, MH .

JOURNAL OF CHEMICAL PHYSICS, 1986, 84 (04) :2129-2136

[9] Heavy ozone enrichments from ATMOS infrared solar spectra [J].

Irion, FW ;

Gunson, MR ;

Rinsland, CP ;

Yung, YL ;

Abrams, MC ;

Chang, AY ;

Goldman, A .

GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (17) :2377-2380

[10]

JANSSEN C, 1999, THESIS RUPRECHTKARLS

← 1 2 →