Time-resolved measurements of the B-2 Sigma state of SrF by laser spectroscopy

被引:10
作者
Berg, LE
Ekvall, K
Hansson, T
Iwamae, A
Zengin, V
Husain, D
Royen, P
机构
[1] UNIV CAMBRIDGE,DEPT CHEM,CAMBRIDGE CB2 1EW,ENGLAND
[2] UNIV STOCKHOLM,DEPT PHYS,S-11346 STOCKHOLM,SWEDEN
[3] KYOTO UNIV,DEPT ENGN SCI,KYOTO 60601,JAPAN
[4] MIDDLE EAST TECH UNIV,DEPT CHEM,ANKARA 06531,TURKEY
关键词
D O I
10.1016/0009-2614(95)01330-X
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
We report a time-resolved investigation of the low-lying state, B-2 Sigma, of gaseous SrF using laser spectroscopy with the following derived zero-pressure lifetime tau(B (2) Sigma(v' = 0)) = 25.4 +/- 0.8 ns. Such measurements constitute an important contribution to our overall understanding of excited alkaline earth halides. They are also applied to the interpretation of molecular dynamic investigations of halogen atomic abstraction reactions by excited atoms, in the present case, Sr[5s5p(P-3(J))], with molecules such as CH3F where the A --> X and B --> X chemiluminescence emissions are employed in the time-domain to monitor the production of electronically excited SrF on collision.
引用
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页码:283 / 288
页数:6
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