Abstract
In this paper, pump-probe spectroscopy with simultaneous sub-20-fs time resolution and broad spectral coverage from the visible to the near infrared was used to track the wavepacket motion through a conical intersection (CI) in rhodopsin (Rh). Results show that the wavepacket reaches the CI in ≈75 fs, after which it leaves the excited state of the reactant. The transient signals were simulated by hybrid quantum-mechanical/molecular-mechanical trajectories following the evolution of the opsin-embedded chromophore from the excited to the ground electronic state. Excellent agreement between the experimental observations and molecular dynamics calculations that involve a true electronic state crossing were observed. This suggests that the CI seam has a strongly “peaked” topography.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
