Internal conversion as the main stabilization mechanism for long-lived negative molecular ions |
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Authors: | A. S. Vorob’ev S. A. Pshenichnyuk N. L. Asfandiarov E. P. Nafikova |
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Affiliation: | 1. Institute of Physics of Molecules and Crystals, Ufa Scientific Center, Russian Academy of Sciences, pr. Oktyabrya 151, Ufa, 450075, Russia
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Abstract: | The temperature dependence of the mean lifetime of Ph-N=N-Ph? azobenzene negative molecular ions on the captured electron energy is studied with a static mass spectrometer by the method of resonance electron capture. A family of respective experimental dependences is calculated accurate to 2–10%. It is shown that the molecular anions in the epithermal electron energy range can be stabilized through internal conversion, namely, a series of fast radiationless transitions without change in the multiplicity. |
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