Voronoi dipole moments for the simulation of bulk phase vibrational spectra
文献情報
Martin Thomas, Martin Brehm, Barbara Kirchner
We present the Voronoi tessellation of electron density data to obtain molecular dipole moments in bulk phase ab initio molecular dynamics simulations for the calculation of vibrational spectra. Opposed to the established scheme of maximally localized Wannier functions, this approach does not rely on computationally demanding localization procedures. Nevertheless, we show at the examples of methanol, benzene, and phenol that it provides infrared and Raman spectra of similar quality and is even superior in specific cases like the Raman spectra of benzene and phenol. We have also applied the Voronoi method to a mixture of the ionic liquid 1-ethyl-3-methylimidazolium acetate with water, and show that it is advantageous in systems with significant charge transfer.
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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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