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Computational and spectroscopic characterization of thianthrene
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Computational and spectroscopic characterization of thianthrene
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Journal Article
Computational and spectroscopic characterization of thianthrene
2024
Overview
In this work, we have carried out a comprehensive characterization of the vibrational spectroscopy of the non-planar molecule thianthrene. The combination of infrared, Raman and inelastic neutron scattering spectroscopies is highly complementary and allows all of the modes to be observed. Periodic density-functional theory calculations have provided unambiguous assignments of the spectra. The literature states that C–S stretch modes occur in the 600–800 cm −1 range. We find that while there are modes that involve sulfur motion in this region, this is a consequence of motion in the ortho -phenylene rings. The modes that are driven by the C–S stretches are found in the ~400–500 cm −1 range. The C–S–C bending modes occur in the 200–300 cm −1 range; these have not been previously characterized.
Publisher
The Royal Society Publishing,The Royal Society
Subject
