Conclusions
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1.
A complete analysis has been performed on the13C-satellite13C-{1H} NMR spectra of the benzene ring of trialkyl phenoxy derivatives of Si, Ge, and Sn.
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2.
In this series of compounds, the degree of orbital overlapping of the 2p-electrons of the oxygen atom with the π-system of the benzene ring is practically independent of steric interactions.
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3.
Only the 3d-orbital of the Si atom has appreciable π-acceptor properties in interaction with the unshared electron pairs of oxygen.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2038–2042, September, 1982.
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Krivdin, L.B., Kalabin, G.A., Mirskov, R.G. et al. NMR spectroscopic study of conjugation effects Communication 19. Electronic effects in trialkyl phenoxy derivatives of silicon, germanium, and tin. Russ Chem Bull 31, 1799–1802 (1982). https://doi.org/10.1007/BF00952380
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DOI: https://doi.org/10.1007/BF00952380