Some Electrical and Optical Aspects of Molecular Behaviour - 1st Edition - ISBN: 9781483180335, 9781483196145

Some Electrical and Optical Aspects of Molecular Behaviour

1st Edition

The Commonwealth and International Library: Chemistry Division

Authors: Mansel Davies
Editors: Robert Robinson H. M. N. H. Irving L. A. K. Staveley
eBook ISBN: 9781483196145
Imprint: Pergamon
Published Date: 1st January 1965
Page Count: 200
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Some Electrical and Optical Aspects of Molecular Behaviour deals with dipole moments, molecular science, and molecular polarizability. The author explains the refractive index and the electric permittivity including polarization, polarizability, the Mossotti-Clausius equation, molar polarization, and molar refraction. The author also addresses the results of dipole moment measurements, the significance of the values obtained, and how these can determine molecular structural features. By using the Debye equation, one can determine the molecular moments of polar solutes in non-polar solvents. The book discusses how molecular polarizability and molecular polarization are measured and how these factors are associated with molecular structure. He also explains light scattering and the molecular weight of solutes by employing the research made by Debye which determines the weights, shapes, and interactions of molecules in solution. The author also addresses the form and order of the magnitude of interaction energies and cites typical examples of these occurrences. These energies often represent an electrostatic nature; in some ways, they can be understood as being quantum-mechanical in nature. This book can be helpful for students taking up dipole moments, molecular polarizability or molecular science.

Table of Contents


Inside Front Cover One

Inside Front Cover Two

Some Numerical Constants


Chapter 1: An Introduction

Publisher Summary


Chapter 2: The Refractive Index and the Electric Permittivity

Publisher Summary

Polarization and Polarizability

The Mossotti-Clausius Equation

The Molar Polarization

The Molar Refraction

Polar Compounds

The Measurement of the Permittivity, ε′

The Debye Equation

Approximate Dipole Moments Evaluated from Solution Data

Other Methods of Dipole Moment Determination


Chapter 3: Molecular Dipole Moments

Ionic Character of Diatomic Molecules

Other Ionic Molecules

Vector Character of Dipole Moments

Group Moments and Molecular Structure

Intramolecular Rotation


Chapter 4: The Limitations and Extensions of the Simple (Debye) Treatment of the Molar Polarization

Publisher Summary

The Dipole Concentration

The Onsager Equation

Water and Hydrogen-bonded Liquids


Chapter 5: Dielectric Dispersion and Molecular Behaviour

Publisher Summary

Phase Angle and Dielectric Loss

The Pellat-Debye Equations

Experimental Study of Dielectric Absorption


Polar Solutes in Non-polar Solvents

Organic Solids

Ionic and Polar Solids


Chapter 6: Aspects of Molecular Polarizability

Light Scattering

Light Scattering and the Molecular Weight of Solutes

Measurement of Light Scattering by Solutions

Dissymmetric Light Scattering and Molecular Shape

Depolarization of Scattered Light

Anisotropy of the Polarizability

The Kerr Effect

The Data and Interpretation of Molecular Anisotropy

Polarizability and Optical Activity

The Helical Model

The Raman Effect



Chapter 7: Electric Forces Between Molecules

Publisher Summary



Two Rigid Dipoles

Induced Dipole

Ion-Induced Dipole

Dipole-Induced Dipole

Dispersion (or London) Energy

Quadrupole Moments

Repulsion Energy

Intermolecular Interaction Energies

Dipole Interactions

Ionic Interaction Energies


Numerical Answers to Examples



No. of pages:
© Pergamon 1965
eBook ISBN:

About the Author

Mansel Davies

About the Editor

Robert Robinson

Affiliations and Expertise

Recently retired from editorship of Canadian Security magazine

H. M. N. H. Irving

L. A. K. Staveley

Ratings and Reviews