Conclusions
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1.
A universal force field was composed on the basis of the force constants of silaethylene H2C=SiMe2 and silanes R2SiX2, which permits calculation of the vibrational frequencies of silaethylenes H2C=SiX2 (X=H, D, Cl) and the assignment of bands in their experimental IR spectra.
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2.
The vibrational frequency for the C=Si bond in H2C=SiX2 is found in the vicinity of 1000 cm−1 according to the calculation performed and experimental literature data which corresponds to a force constant KC=Si=5.6 mdyn/0A.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1314–1318, June, 1983.
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Baskir, É.G., Mal'tsev, A.K. & Nefedov, O.M. Vibrational spectra of silaethylenes H2C=SiX2 (X=H, D, Cl). Russ Chem Bull 32, 1186–1190 (1983). https://doi.org/10.1007/BF00953154
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DOI: https://doi.org/10.1007/BF00953154