Electronic Charges of Bonds in Organic Compounds

Electronic Charges of Bonds in Organic Compounds presents simple and diverse methods for calculating the electronic charges of bonds from the results of physical methods of investigation. This book is composed of 10 chapters that consider the concept of electronic charges of bonds, which opened up possibilities for the study of the chemical and physical properties of organic compounds. Chapter I deals with the history of the structural theory of organic compounds, demonstrating the development of the idea of electronic bond charges and showing the close analogy between the methods of studying them. Chapters II to VI discuss the results of a study of the relationship of the electronic charges of bonds to the physical and physicochemical characteristics of molecules and their structural elements. Chapters VII to X highlight the relationship between the electronic charges of bonds and chemical properties. This book will be of value to organic chemists.

Preface

Chapter I. Historical Outline and Introduction

1. History of the Classical and Electronic Theory of the Structure of Organic Compounds

2. Conception of Electronic Charges of Bonds

3. Introduction to the Subsequent Chapters

References

Chapter II. Electronegativities (Electronophilic Nature) of Atoms

1. Relationship between Electronegativities of Atoms and Electronic Bond Charges

2. Mechanism of the Mutual Effect of Atoms

References

Chapter III. Dipole Moments

1. Dipole Moments of Halomethanes and Electronegativities of Halogens

2. Dipole Moment of Isobutane and Electronegativity of Carbon

References

Chapter IV. Frequencies of Valency Vibrations of C—H Bonds in Hydrocarbons

1. Relationship of Force Constants and Frequencies of Valency Vibrations to Electronic Bond Charges

2 Electronic Bond Charges in Cyclopropane

References

Chapter V. Interatomic Distances

1. The Linear Relationship between π-Electron Bond Charges and Interatomic Distances

2. Calculating Linear Equations

3. π-Electron Bond Charges in Organic Compounds

4. Relationship between σ-Electron Charges and Bond Lengths

References

Chapter VI. Heats of Formation

1. Two Relationships between the "Heats of Elementization" of Hydrocarbons and Electronic Bond Charges

2. Saturated Hydrocarbons

3. Unsaturated Hydrocarbons

4. Chlorine and Bromine Derivatives of Paraffins

5. Organic Compounds Containing Oxygen

References

Chapter VII. Heat Effects of Organic Reactions

1. Hydrogenation and Bromination of Ethylene and Its Homologues

2. Isomerization of Mono-Olefins

References

Chapter VIII. Organic Radicals and Ions

1. Radicals and Dissociation Energies of Bonds

2. Energy Stability of Carbanions and Carbonium Ions

References

Chapter IX. Chemical Properties of σ-Bonds

1. Substitution Reactions at a Saturated Carbon Atom

2. Cleavage Reactions

References

Chapter X. Chemical Properties of σ-Bonds

1. Addition Reactions

2. Substitution Reactions in Benzene Derivatives

References

Conclusion

Subject Index