Conclusions
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1.
We observe a substantial reduction in the p-π conjugation of the S atom with the aromatic system on going from phenyl to pentafluorophenyl derivatives of divalent sulfur.
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2.
The first ionization potential of pentafluorophenyl derivatives of divalent sulfur is 1.0–1.4 eV higher than for the corresponding hydrocarbon analogs.
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3.
When the sulfur atom is included in the conjugated fragment S-Cl, the differences in the effectiveness of the p-π conjugation of the S atom with the phenyl and the pentafluorophenyl rings are leveled out to a significant degree.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1271–1279, June, 1981.
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Zykov, B.G., Krupoder, S.A., Dolenko, G.N. et al. Comparison study of outer valence levels in phenyl and pentafluorophenyl derivatives of divalent sulfur by photoelectron and x-ray fluorescence spectroscopy. Russ Chem Bull 30, 1006–1013 (1981). https://doi.org/10.1007/BF00950282
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DOI: https://doi.org/10.1007/BF00950282