MULTI-ISOTOPE STUDY OF THE O((1)D)+CO2 EXCHANGE AND STRATOSPHERIC CONSEQUENCES

被引：71

作者：

WEN, J ^{[1
]}

THIEMENS, MH ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO, DEPT CHEM, LA JOLLA, CA 92093 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 1993年 / 98卷 / D7期

关键词：

D O I：

10.1029/93JD00565

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The first multi-isotope (deltaO-17 and deltaO-18) study of an isotopic exchange between an electronically excited species O(1D) and CO2 has been performed. The O(1D), which was generated from O3 UV photolysis, undergoes an isotopic exchange with CO2 via a CO3 not-equal intermediate transition state. A non-mass-dependent isotopic effect is observed via the exchange, which has a direct application to recent stratospheric CO2 observations and analysis of water presumed to be derived from the Martian surface. The isotopic data are also important in assessing the physical-chemical properties of the CO3 not-equal complex.

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页码：12801 / 12808

页数：8

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