A highly variable opto-acoustic phase angle within the So → S1 band of glyoxal |
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| Authors: | MB Robin NA Kuebler K Kaya GJ Diebold |
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| Institution: | Bell Laboratories, Murray Hill, New Jersey 07974, USA;Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA |
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| Abstract: | The S0 → S1 transition in the opto-acoustic spectrum of glyoxal vapor exhibits a variable phase angle which follows the pattern of absorption intensity. This unusual phenomenon results from a quenching of T1 by So to form a long-lived intermediate, M, which then produces heat via an M + M reaction. |
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