A modification of the onsager theory for a dielectric

Block, H.; Walker, S.

doi:10.1016/0009-2614(73)80380-x

Cited by 128 publications

(79 citation statements)

References 2 publications

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“…A mere substitution of the Heaviside step function originally used by Onsager to describe electric induction on the molecular cavity continuum border for an exponent [20] notably decreased discrepancies (ΔmΚg2l , 1 = 1, 2) between the experimental (mlq) and calculated molar Kerr constants (Table III, Fig. 1, 2).…”

Section: Resultsmentioning

confidence: 97%

“…To compute molar Kerr constants ∞(mKl2)e we used several schemes including orientational theory of EB with Onsager (1 = 1) [19] and Block-Walker (l = 2) [20] internal field models and Langevin-Born theory (l = 3) Eq. (3) modified to treat dilute binary solutions.…”

Section: Resultsmentioning

confidence: 99%

“…This unphysical situation cannot correspond to the gaseous phase of solutes. Relative errors in the extrapolated values of (mΚg2l)e determined according to [19] (l = 1), [20] (l = 2), and [3] (l = 3) with respect to the corresponding experimental gaseous , phase values mK? form a series of inequalities ΔmKg2 > ΔmKe2 > ΔmKe3.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Electric Polarization of Onsager Fluids. II. Birefringence. 3. Role of Universal Pairwise Interactions

et al. 1996

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A comparative analysis of several methods of interpretation of solvent influence on molar Kerr constants of solutes was done. The analysis was based on experimentally determined electro-optical and dielectric properties of binary solutions of organic substances with various polarities, polarizabilities and optical anisotropies. It was found that the role of universal van-der-Waals interactions treated via London-Debye-Keesom potentials was best accounted for by a modified orientational theory of Kerr effect that developed the ansatz of reactive field and local dielectric permittivity. An extrapolation method of determination of gas phase molar Kerr constants of solutes was deduced from the theory.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

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Electric Polarization of Onsager Fluids. II. Birefringence. 3. Role of Universal Pairwise Interactions

et al. 1996

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“…The outcomes of jnxtaposition of gaseous phase Kerr constants m/ with the calculated ones (m.K½ )i of substances dissolved in non-polar and polar solnotes the explicit form of the local field either employed within the limits of Langevin-Born's theory: i = 1 -the Lorenz model, i = 2 -Onsager one, i = 3 -Block-Walker's [6]; or used in the expression (4): i = 4 [2], i = 5 [3].…”

Section: Experimental Test Of the Modelmentioning

confidence: 91%

Electric Polarization of Onsager Fluids. II. Birefringence. 2. Molar Kerr Constants of Binary Solutions

et al. 1994

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On the ground of dielectrometry and electric birefringence data we calculated mołar Kerr constants of substances dissolved in organic media of diverse polarity and polarizability under t 1e conditions of infinite dilution. M i n i m a l e r r o r s o [t h e c a l c u l a t e d c o n s t a n t s , i n r e l a t i o n t o t h e i r g a s e o u s p h a s e vahes, were achieved as a result of tłe introduction of the local fiełd model, which evolves the concepts of reactive field and local electric induction of a polarized fłuid, into the orientational theory of Kerr effect.

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“…Substances of the following classes were used as solutes: oxygen, nitrogen and halogen derivatives of benzene, alkylbenzenes, paraffins and cycloparaffins; and ketones, nitriles and some heterocyclic compounds (Table II). The calculated values of gaseous phase dipole moments of solute molecules 2k were obtained within the limits of the original Onsager model [11], k = 1, its modification [12], k = 2, and our approach [1], k = 3. The results are shown in Table II Interpreting the experimental data and theoretical results, we notice the following.…”

Section: • In Apolar Solventsmentioning

confidence: 99%

Electric Polarization of Onsager Fluids. I. Dipole Polarization. 3. The Role of Universal Pairwise Interactions

et al. 1995

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A comparative study of the methods of interpretation of solvent influences on electric properties of molecules was conducted based on experimental dielectric properties of dilute solutions of organic substances of various polarity. It was shown that the solvent effect estimated via London-Debye-Keesom pairwise interaction potentials is best accounted for by theories of polarization of condense media which develop the anzatzes of reactive field and local dielectric permittivity.

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A modification of the onsager theory for a dielectric

Cited by 128 publications

References 2 publications

Electric Polarization of Onsager Fluids. II. Birefringence. 3. Role of Universal Pairwise Interactions

Electric Polarization of Onsager Fluids. II. Birefringence. 3. Role of Universal Pairwise Interactions

Electric Polarization of Onsager Fluids. II. Birefringence. 2. Molar Kerr Constants of Binary Solutions

Electric Polarization of Onsager Fluids. I. Dipole Polarization. 3. The Role of Universal Pairwise Interactions

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