GAS-PHASE METAL OXIDATION REACTIONS STUDIED BY CHEMIELECTRON SPECTROSCOPY AND CHEMIION MASS-SPECTROMETRY - REACTIONS OF CERIUM AND LANTHANUM WITH O2(X3-SIGMA-G), O2(A1-DELTA) AND O(3P)

被引:13
|
作者
COCKETT, MCR [1 ]
DYKE, JM [1 ]
ELLIS, AM [1 ]
WRIGHT, TG [1 ]
机构
[1] UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND
来源
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1991年 / 87卷 / 01期
关键词
D O I
10.1039/ft9918700019
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 gas-phase reactions M + O2(X 3-SIGMA-g-), M + O2(a 1-delta-g)an and M + O(3P) have been studied with chemielectron spectroscopy, where M represents one of the lanthanide metals, cerium or lanthanum. Assignment of the observed bands has been assisted by mass analysis of the ions produced and by approximate kinetic modelling calculations. For the M + O2(X 3-SIGMA-g-) and M + O2(a 1-detla-g) associative ionization reactions, most of the excess energy appears as electron kinetic energy, whereas for the M + O(3P) reactions a larger fraction of the reaction energy is retained in the positive ion.
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页码:19 / 29
页数:11
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