Excited state vibrational spectra of all-trans retinal derivatives in solution revealed by pump-dfwm experiments
The ultrafast structural changes during the photoinduced isomerization of the retinal-protonated Schiff base (RPSB) is still a poorly understood aspect in the retinal’s photochemistry. In this work, we apply pump-degenerate four-wave mixing (pump-DFWM) to all-trans retinal (ATR) and retinal Schiff b...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
December 3, 2018
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| In: |
The journal of physical chemistry. B, Biophysics, biomaterials, liquids, and soft matter
Year: 2018, Volume: 122, Issue: 51, Pages: 12271-12281 |
| ISSN: | 1520-5207 |
| DOI: | 10.1021/acs.jpcb.8b08495 |
| Online Access: | Resolving-System, Volltext: https://doi.org/10.1021/acs.jpcb.8b08495 Verlag: https://pubs.acs.org/doi/10.1021/acs.jpcb.8b08495 
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| Author Notes: | Jan Philip Kraack, Marcus Motzkus, and Tiago Buckup |
| Summary: | The ultrafast structural changes during the photoinduced isomerization of the retinal-protonated Schiff base (RPSB) is still a poorly understood aspect in the retinal’s photochemistry. In this work, we apply pump-degenerate four-wave mixing (pump-DFWM) to all-trans retinal (ATR) and retinal Schiff bases (RSB) to resolve coherent high- and low-frequency vibrational signatures from excited electronic states. We show that the vibrational spectra of excited singlet states in these samples exhibit pronounced differences compared to the relaxed ground state. |
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| Item Description: | Gesehen am 03.02.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1520-5207 |
| DOI: | 10.1021/acs.jpcb.8b08495 |