Multiphoton Dissociative Ionization of Gas-Phase Styrene
We performed multiphoton ionization of styrene molecules and observed the formation of styrene and benzene cations, the latter being reported for the first time in the multiphoton ionization of styrene. The formation of the benzene cation reveals an internal conversion from the S<sub>1</sub> state to the S<sub>0</sub> state, which occurs via a S<sub>1</sub>/S<sub>0</sub> conical intersection at 4.66 eV above the minimum of the S<sub>0</sub> state. The present results indicate the position of this conical intersection to be energetically lower than the theoretically calculated value and also the previous experimental observation. The role of dissociative ionization of styrene in the formation of benzene cations in the atmosphere is discussed.
Authors
- Saroj Barik (ORCID: https://orcid.org/0000-0001-6755-5527)
- Rajesh K. Kushawaha (ORCID: https://orcid.org/0000-0002-8134-9030)
- Y. Sajeev
- Saurav Dutta (ORCID: https://orcid.org/0000-0002-7329-7760)
- Aravind Gopalan (ORCID: https://orcid.org/0000-0003-4648-7136)
- Nihar Ranjan Behera (ORCID: https://orcid.org/0009-0003-5527-0761)
Institutions
- Physical Research Laboratory (IN)
- Bhabha Atomic Research Centre (IN)
- Indian Institute of Technology Madras (IN)
Publication Details
- Journal
- The Journal of Physical Chemistry A
- Published
- 2024-10-14
- DOI
- https://doi.org/10.1021/acs.jpca.4c05621
- Citations
- 2
- Primary Topic
- Mass Spectrometry Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.48
Funders
- Indian Space Research Organisation
- Science and Engineering Research Board