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

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Berg L., Ekvall K., Hansson T., Iwamae A., Zengin V., Husain D., ...More

CHEMICAL PHYSICS LETTERS, vol.248, pp.283-288, 1996 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 248
• Publication Date: 1996
• Doi Number: 10.1016/0009-2614(95)01330-x
• Journal Name: CHEMICAL PHYSICS LETTERS
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.283-288
• Middle East Technical University Affiliated: No

Abstract

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.