High energy photophysics and photochemistry: Assignment of initial electronic states of fragmentation processes in CO2+2 |
| |
| Institution: | 1. Department of Physics and Astrophysics, University of Delhi, Delhi, Delhi 110007, India;2. Department of Physics, Miranda House College, University of Delhi, Delhi, Delhi 110007, India;3. Department of Physics, Swami Shradhanand College, University of Delhi, Delhi, Delhi 110036, India;4. Department of Physics, Hansraj College, University of Delhi, Delhi, Delhi 110007, India;5. Department of Physics, Pt.N.R.S.G.C.Rohtak, Maharshi Dayanand University, Rohtak 124001, Haryana, India;1. Department of Chemical Biology, Max-Planck-Institute of Molecular Physiology, Otto-Hahn-Straße 11, 44227, Dortmund, Germany;2. Faculty of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Straße 4a, 44227, Dortmund, Germany;1. School of Materials Science and Engineering, Guizhou Minzu University, Guiyang 550025, China;2. College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 550025, China;1. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China;2. School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China;3. NYU-ECNU Joint Institute of Physics, New York University at Shanghai, Shanghai 200062, China;4. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China;5. CAS Center for Excellence in Ultra-intense Laser Science, Shanghai 201800, China;1. Department of Physics, D.A.V. College, Muzaffarnagar 251001, India;2. Department of Physics, Meerut College, Meerut 250001, India |
| |
| Abstract: | The assignment of the electronic states of gas-phase molecular dications presents a number of difficulties. After discussing these problems a strategy for assignment, which collates the results of several experimental and theoretical techniques, is presented. The use of information from the fragmentation dynamics of dication states is proposed. Three states, g̃a, g̃b and g̃g, of CO2+2, whose appearance potentials were previously observed by photoion-photoion coincidence techniques at 37.9, 40.5 and 45 eV, respectively, are assigned using the methods presented. The results also strongly support the value 37.7 eV for the appearance potential of the metastable ground state X̃3∑-g of CO2+2. Present limitations and future desirable progress of the assignment techniques are discussed. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
