Temperature-dependent studies of solvated electrons in liquid water with two and three femtosecond pulse sequences
文献情報
Andreas Hertwig, Horst Hippler, Andreas-N. Unterreiner
Two and three pulse sequences with an experimental time resolution of about 100 fs have been used to unravel the dynamics of solvated electrons in water at different temperatures. Both, geminate recombination and relaxation of the absorption spectrum can be distinguished using these pulse sequences. The relaxation process has been analysed applying shape stability of the absorption spectrum on an ultrafast time scale. A rigorous analysis of our data leads to strong evidence that solvated electrons in pure water are formed, after a delay, within the first few hundred fs after 9.32 eV photon absorption. Transferring optical sum rules (moment analysis of the absorption spectrum) to the ultrafast dynamics of solvated electrons we conclude that electronic ground state dynamics dominate the relaxation of solvated electrons.
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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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