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Characteristic vibrational frequencies of the SOS group
Affiliation:1. Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China;2. Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China;1. State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China;2. Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden;3. School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia;4. School of Chemical Engineering, The University of Queensland, St Lucia, Brisbane 4072, Australia;5. Applied Materials Physics, Department of Materials and Engineering, Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden;1. Wuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China;2. Department of Microelectronics and Nanoelectronics, Tsinghua University, Beijing, 100084, China;3. Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China;4. Department of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430073, China
Abstract:The assignment of frequencies for the three vibrations of the SOS groups in molecules of the type XnSOSXn is discussed. It is shown that a consistent assignment can be given for all ten molecules of this type for which data are available. This assignment gives reasonable values of force constants in a simple valence force-field calculation. It is shown that there are linear relationships between the frequencies of the symmetrical stretching and bending modes of the SOS group and the square-root of the mass of the groups SXn attached to the oxygen atom.
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