Dielectric study of the intermolecular association of alcohols in solutions of benzene.

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概要

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• The relative permittivity at 1 MHz, the refractive index at the wavelength of sodium D-line and density of the nine alcohols, 1-propanol (A), 2-propanol (B), 1-butanol (C), 2-methyl-1-propanol (D), 1-pentanol (E), 1-hexanol (F), 1-heptanol (G), 3-methyl-2-hexanol (H), 3-methyl-3-hexanol (I), have been measured at 25 °C in benzene in the entire concentration range. The measurements for 1-dodecanol (J) have been made in dilute solutions only. The dipole moments of these molecules in dilute solutions, using Higasi's equation, and the apparent dipole moment for various solute concentrations, using Kirkwood-Fröhlich equation, have been calculated. The results suggest that at low concentrations the alcohols associate to form weakly polar multimers. At high concentrations and in pure liquids, the isomers in which the hydroxyl group is relatively free, favour the formation of highly polar multimers, whereas the isomers in which the hydroxyl group is sterically blocked by the methyl group, favour the formation of closed or ring dimers having low dipole moment.

• 公益社団法人 日本化学会の論文

著者

• Singh Buta

  Department Of Physics Punjabi University

• Vij J.

  Department of Physics, Panjab University

• Vij J.

  Department of Physics, Punjabi University

関連論文

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• Dielectric study of the intermolecular association of alcohols in solutions of benzene.
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• Dielectric Relaxation and Molecular Structure. II Dielectric Relaxation in Dibutyl Ether, Diphenyl Ether and Benzophenone in Various Nonpolar Solvents
• Dielectric Relaxation in Substituted Benzaldehydes
• Dielectric relaxation in some substituted benzaldehydes in benzene at different temperatures.

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