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Article Dans Une Revue Chemical Physics Letters Année : 2020

Isomerization and dehydrogenation of highly vibrationally excited azulene+ produced via S2 vibrational manifold

M.V. Vinitha
  • Fonction : Auteur
Arya Nair
  • Fonction : Auteur
Abhishek Kumar
Umesh Kadhane
  • Fonction : Auteur

Résumé

High resolution energy-ToF correlation spectrometer and a nanosecond laser is employed to extract Hloss rate in hot azulene cations in UV region. Correlation between the photon wavelength and H-loss rate is obtained for 3-photon process and it is explained by a two-step mechanism: (i) 1+1 ionization with ultrafast internal conversion to the long-lived S2 state (ii) the increase of internal energy by absorption of the third photon and isomerization. The work uncovers the role of S2 state dynamics in Azulene in controlling the internal energy to a very narrow range.
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Dates et versions

hal-03005105 , version 1 (16-11-2020)

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M.V. Vinitha, Arya Nair, Abhishek Kumar, Valérie Blanchet, Umesh Kadhane. Isomerization and dehydrogenation of highly vibrationally excited azulene+ produced via S2 vibrational manifold. Chemical Physics Letters, 2020, 745, pp.137250. ⟨10.1016/j.cplett.2020.137250⟩. ⟨hal-03005105⟩
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