The experimentally determined electro-optic Kerr constant values of some homologous series of organic liquids belonging to Ketone, Aldehyde and Nitriles are combined with the molecular refraction data of these liquids to compute the anisotropic electronic polarizabilities in the ground state. These values are found to be fairly in good agreement with those values reported in literature. The polarizability values are found to be increasing in each homologous series with increasing chain-length by CH2 intervening groups. This fact has been supported by the predominant nature of the inductive effect that arises due to the structural changes of the molecules in these series. © 1995, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

K Rajagopal

Department Of Civil Engineering

T. A. Prasadarao

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IIT Madras

Estimation of Anisotropic Electronic Polarizabilities of Some Homologous Organic Liquids by Kerr Effect Studies

Journal of the Physical Society of Japan

The electro optical Kerr coefficients of binary liquid mixtures, comprising of aprotic-aprotic molecules only, are measured over the temperature range of 286 K to 315 K. To with in experimental errors, the logarithm of Kerr coefficient can be expressed as Van't Hoff type expression to the reciprocal of temperature. Information on the interaction energy between the constituents of the binary mixtures is thereby obtained. It is found that the interaction energy in aromatic ketone-aliphatic nitrile binary mixtures is comparatively higher than in the binary mixtures with aliphatic ketone-aliphatic nitriles, aromatic ketone-aromatic nitrile and aromatic ketone-aliphatic ketones components. This is attributed to the dipole-dipole interaction existing between the components of the binary mixtures.The electro optical Kerr coefficients of binary liquid mixtures, comprising of aprotic-aprotic molecules only, are measured over the temperature range of 286 K to 315 K. To with in experimental errors, the logarithm of Kerr coefficient can be expressed as Van't Hoff type expression to the reciprocal of temperature. Information on the interaction energy between the constituents of the binary mixtures is thereby obtained. It is found that the interaction energy in aromatic ketone-aliphatic nitrile binary mixtures is comparatively higher than in the binary mixtures with aliphatic ketone-aliphatic nitriles, aromatic ketone-aromatic nitrile and aromatic ketone-aliphatic ketones components. This is attributed to the dipole-dipole interaction existing between the components of the binary mixtures.

Journal	Journal of the Physical Society of Japan
ISSN	00319015
Open Access	No