Exploring wavepacket dynamics behind strong-field momentum-dependent photodissociation in CH2BrI+
Literature Information
Jesús González-Vázquez, Leticia González, Sarah R. Nichols, Thomas C. Weinacht, Tamás Rozgonyi
The ultrafast photodissociation dynamics of CH2BrI+ into CH2Br+ + I is studied using high level ab initio electronic structure calculations in conjunction with integration of the time-dependent Schrödinger equation and compared with measured pump–probe signals. These pump–probe measurements provide evidence for momentum-dependent dissociation, which is interpreted using two theoretical models. The first is based on DFT and TD-DFT calculations neglecting spin–orbit coupling, while the other, more rigorous model employs a larger number of coupled multi-configurational potentials obtained by means of CASSCF calculations. The latter model highlights the role of spin–orbit coupling between ionic electronic states as well as the effect of strong fields in the quantum dynamics including Stark-shifts and multi-photon excitation.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.













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