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Effects of the medium in NMR Communication 6. Concentration dependences of the chemical shift of hydrogen chloride in various solvents

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Conclusions

  1. 1.

    A study of the concentration dependences of the chemical shifts of hydrogen chloride in various electron-donor solvents indicates the formation of an intermolecular hydrogen bond between the HCl and solvent molecules.

  2. 2.

    The composition and structure of the donor-acceptor complexes formed depend on the ratio of the HCl and solvent (P) concentrations. If [HCl] ≫ [P], then the polymer autoassociate [HCl]n predominates in solution; if [HCl] = [P], the main component of the solution is the oligomer complex mP·(HCl)m; if [HCl] ≪ [P], monomer complexes P · HCl predominate in solution.

  3. 3.

    The strength of the intermolecular hydrogen bonds formed in the complexes mP · (HCl)m is characterized by the depth of the plateau of the experimental curves, while for the complexes P. HC1 it is characterized by the extrapolated chemical shift with decreasing HC1 concentration.

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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1730–1734, August, 1973.

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Petrosyan, V.S., Davydov, E.Y. & Reutov, O.A. Effects of the medium in NMR Communication 6. Concentration dependences of the chemical shift of hydrogen chloride in various solvents. Russ Chem Bull 22, 1683–1686 (1973). https://doi.org/10.1007/BF00932093

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Keywords

  • Hydrogen
  • Polymer
  • Chloride
  • Hydrogen Bond
  • Chemical Shift