Journal Article10.1080/00268979200100621
Einstein A-coefficients and transition dipole moments for some ion-pair to valence transitions in I2
Kenneth P. Lawley,Philip J. Jewsbury,Trevor Ridley,Patrick R. R. Langridge-Smith,Robert J. Donovan +4 more
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TL;DR: The relative fluorescence intensities of all the strong electronic transitions from five of the first cluster of ion-pair (IP) states of I2 and from three states in the second cluster have been measured as discussed by the authors.
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Abstract: The relative fluorescence intensities of all the strong electronic transitions from five of the first cluster of ion-pair (IP) states of I2 and from three states in the second cluster have been measured. The fluorescence, in most cases from ν′ = 0, was dispersed and comprised both discrete and continuous (bound → free) spectra. These were fitted and each simulated electronic spectrum integrated separately to give relative values of the Einstein A-coefficients (summed over final vibrational states) for each transition. Using previously reported lifetimes, transition dipoles for each of the parallel transitions from nine IP states are deduced, together with some of the stronger perpendicular transition dipole moments. At R e of the ion-pair states, μ‖ (five transitions observed) is almost constant at 0·2–0·3 D, but μ‖ ranges between 0·7 and 3·7 D. There is a marked difference in the parallel transition moments associated with some g/u pairs in the same cluster of IP states which can be accounted for by the ...
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Citations
Spectroscopy and electronic structure of ion-pair states
TL;DR: Ion-pair states are a distinctive subset of the valence states of molecules as mentioned in this paper, and they constitute the ground electronic state, but more usually their term values lie close to the lowest Rydberg states.
53
Femtosecond dynamics of photoinduced molecular detachment from halogenated alkanes. II. Asynchronous concerted elimination of I2 from CH2I2
TL;DR: In this paper, the photoinduced molecular detachment dynamics of CH2I2 have been investigated with femtosecond time resolution upon multiphoton excitation of CH 2I2 with 312 nm fem-osecond pulses, weak fluorescence in the 260-290 nm region was observed in addition to the I2 photofragments in the 290-345 nm region.
Solvation Ultrafast Dynamics of Reactions. 12. Probing along the Reaction Coordinate and Dynamics in Supercritical Argon
TL;DR: In this article, the influence of the solvent density on the caging, recombination dynamics, and the nature of the reaction coordinate of iodine in supercritical argon at pressures of 0−2500 bar was investigated.
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Collision-induced non-adiabatic transitions between the ion-pair states of molecular iodine: A challenge for experiment and theory
Timur V. Tscherbul,Alexei A. Buchachenko,Mikhail E. Akopyan,S.A. Poretsky,Anatoly Pravilov,Thomas A. Stephenson +5 more
TL;DR: In this paper, the rate constants and product state distributions under single collision conditions are summarized and interpreted in terms of appropriate theoretical approaches, and two mechanisms for the non-adiabatic transitions between the first-tier ion-pair states of molecular iodine are analyzed and discussed.
Collision-induced electronic energy transfer from v=0 of the E(0g+) ion-pair state in I2: Collisions with I2(X)
TL;DR: In this paper, the authors investigated the collision-induced electronic energy transfer that occurs when I2 in the E(0g+) ion-pair electronic state collides with ground electronic state I2.
References
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Analysis of the 2770-Å emission system in I2
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Two-photon sequential absorption spectroscopy of iodine-127 and 129 in the 5 eV region
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Calculated long‐range potential‐energy curves for the 23 molecular states of I2
M. Saute,Monique Aubert-Frécon +1 more
TL;DR: In this article, the interaction energy for the 23 molecular states of I2 was calculated as a sum of the quadrupolar electrostatic and dispersion energy terms in the multipole expansion for values of the internuclear separation R larger than 7 A.
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