Heterogeneous and hyperfine interactions between valence states of molecular iodine correlating with the I((2)P1/2) + I((2)P1/2) dissociation limit
| Autor: | S.S. Lukashov, Anatoly Pravilov, S.A. Poretsky, V.V. Baturo, A I Zhironkin, I. N. Cherepanov |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Valence (chemistry)
010304 chemical physics Chemistry General Physics and Astronomy Rotational–vibrational spectroscopy 01 natural sciences Potential energy Dissociation (chemistry) 010305 fluids & plasmas 0103 physical sciences Bound state Physical and Theoretical Chemistry Atomic physics Luminescence Hyperfine structure Excitation |
| Zdroj: | The Journal of chemical physics. 144(18) |
| ISSN: | 1089-7690 |
| Popis: | Detailed analysis of interactions between all 0g (+), 1u, and 0u (-) weakly bound states of iodine molecule correlating with the I((2)P1/2) + I((2)P1/2) (bb) dissociation limit has been performed. For this purpose, the 0u (-) (bb) state has been described using analysis of rotationally resolved excitation spectra of luminescence from the g0g (-) state populated in a three-step three-color perturbation facilitated excitation scheme via the 0u (-) state. Energies of 41 rovibrational levels, molecular constants, and potential energy curve have been determined. Energy gaps between closest rovibrational levels of the 0u (-) and 0g (+), 1u (bb) states are found to be large, ∼6 cm(-1). However, interaction of all three 0g (+), 1u, and 0u (-) (bb) states has been observed. It has been found that the 0u (-) and 1u electronic states are mixed by heterogeneous interactions, while their mixing with the 0g (+) one is due to hyperfine interactions predominantly. Admixture coefficients and electronic matrix elements of the coupling between the 0g (+) ∼1u, 0g (+)∼0u (-), and 0u (-) ∼1u states have been estimated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|