Conclusions
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1.
Exchange equilibria of the metal-proton and metal-metal type were studied by the method of IR spectroscopy in a series of substituted phenols and their C6H5Hg and (C6H5)3Sn derivatives.
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2.
The polar effects of substituents in the phenol ring change the position of an equilibrium of the metal-proton type and practically do not influence an equilibrium of the metal-metal type.
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3.
Depending on the nature of the acceptor of the unshared electron pair, the strength of the intramolecular coordination bond with o-halogens increases in the series: (C6H5)3Sn< H< C6H5Hg.
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4.
The C6H5Hg group is a milder Lewis acid than (C6H5)3Sn.
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5.
The differences in the strength of the chelate rings with the participation of the (C6H5)3Sn group and the H-atom of hydrogen increases sharply for six-membered rings formed by NO2 and CHO groups.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2447–2453, November, 1975.
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Épshtein, L.M., Dau, Z.F., Pachevskaya, V.M. et al. IR-Spectroscopic investigation of exchange equilibria in substituted phenols and their organomercury and organotin derivatives. Russ Chem Bull 24, 2334–2339 (1975). https://doi.org/10.1007/BF00921643
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DOI: https://doi.org/10.1007/BF00921643