Molecular polarizability of organic compounds and their complexes: LVI. Molar volume and structure in a solution of the compounds with several axes of intramolecular rotation

  • S. B. Bulgarevich
  • M. V. Boiko
  • M. N. Lyashenko
  • E. E. Akimova
Article
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Abstract

Molar volumes in solutions of compounds like orthoformic esters, trialkyl phosphates, trialkylphosphites, substituted aziridines, cyclopropanes, cyclohexanes, boroxines, N-aryl-4-pyridones, decalines, and cyclooctane were determined and discussed. Conformations of alkyl substituents in the esters were found to be similar to the conformations of the corresponding alkanes. Molar volumes of aziridines and cyclopropanes were found to be additive with respect to the molar volumes of bond and group increments. The nature of solvation of the molecules of these compounds was found to be similar to that in the model systems which served for the calculations of the increments. Molar volumes of cyclohexane, decaline, and cyclooctane also were found to be additive with respect to the contributions of the molar volumes of increments of the corresponding bonds and groups. The solvation and the steric structure of substituted boroxines were found to be similar to those of the structurally analogous substituted benzenes. Conformations of N-aryl-4-pyridone and its substituted derivatives in solutions were found to be similar to the conformations of biphenyl and its derivatives. A possibility of simplification of the methods for determining the dipole moments and Kerr constants of compounds from their additive molar volumes was demonstrated.

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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • S. B. Bulgarevich
    • 1
    • 2
  • M. V. Boiko
    • 2
  • M. N. Lyashenko
    • 1
  • E. E. Akimova
    • 1
  1. 1.Rostov State University of Railway SystemRostov-on-DonRussia
  2. 2.Southern Federal UniversityRostov-on-DonRussia

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