Photodissociation dynamics of fulvenallene, C7H6
Literature Information
Jens Giegerich, Ingo Fischer
The photodissociation dynamics of isolated fulvenallene, the most stable C7H6 isomer, is investigated in a free jet. Fulvenallene, an intermediate in toluene combustion, is generated by flash pyrolysis from phthalide and excited between 255 and 245 nm into a ππ* state with high oscillator strengths. We show that loss of a hydrogen atom and formation of fulvenallenyl is an important dissociation channel for fulvenallene. Velocity map images of the hydrogen atom photofragments are recorded. The photofragment angular distribution is isotropic and the translational energy release can be fitted using a simple one-parameter function. Around 9% of the excess energy is released as translation. All data are in agreement with a statistical photodissociation in the electronic ground state after internal conversion. The impact of the results for combustion chemistry is discussed.
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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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