Conclusions
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1.
The IR spectra of a solution of mercaptoethanol in CCl4 and in gas-phase mercaptoethanol have νXH bands for free OH and SH groups and OH...S and SH...O groups in intramolecular hydrogen bonds. This indicates a conformational multiplicity of the ME molecules.
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2.
A molecular mechanics calculation indicates the possibility of conformational multiplicity for mercaptoethanol. The energy of the intramolecular OH...S hydrogen bond was evaluated.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 711–714, March, 1989.
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Shagidullin, R.R., Chernova, A.V., Plyamovatyi, A.K. et al. Intramolecular hydrogen bonds and conformations of mercaptoethanol molecules. Russ Chem Bull 38, 638–641 (1989). https://doi.org/10.1007/BF00958067
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DOI: https://doi.org/10.1007/BF00958067