Advances in Magnetic Resonance

Advances in Magnetic Resonance, Volume 6 focuses on the theoretical and practical aspects of applying magnetic resonance methods to various problems in physical chemistry, emphasizing the different aspects of the exegesis of these problems.
This book discusses the gas phase magnetic resonance of electronically excited molecules; techniques for observing excited electronic states; NMR studies in liquids at high pressure; and effect of pressure on self-diffusion in liquids. The nuclear magnetic resonance investigations of organic free radicals; measurement of proton coupling constants by NMR; and crystal point group symmetry and microscopic tensor properties in magnetic resonance spectroscopy are also elaborated. This text likewise deliberates the degeneracy of symmetry-related tensors; second and fourth moments in NQR spectroscopy for spins with I = 1; and fourth moment for equivalent nuclei with spins I = 1.
This publication is valuable to physical chemists and students aiming to acquire knowledge on the application of magnetic resonance methods.

Contenu

Contributors

Preface

Contents of Previous Volumes

Gas Phase Magnetic Resonance of Electronically Excited Molecules

I. Introduction

II. The Structural Problem

III. Techniques for Observing Excited Electronic States

IV. Observed Spectra

NMR Studies in Liquids at High Pressure

I. Introduction

II. Experimental Techniques

III. Effect of Pressure on Self-Diffusion in Liquids

IV. Effect of Pressure on the Spin-Lattice Relaxation Times in Liquids

V. Effect of Pressure on Chemical Shift

VI. Conclusions

Appendix: NMR Studies in Solids at High Pressure

Nuclear Magnetic Resonance Investigations of Organic Free Radicals

I. Introduction

II. Relaxation Studies

III. Measurement of Proton Coupling Constants by NMR

IV. Deuterium NMR: Hyperfine and Quadrupole Coupling Constants

V. Fluorine NMR: Fluorine Coupling Constants and Spin Densities

VI. Alkali Metal NMR: Li-Cs Coupling Constants

VII. Measurement of 13C Coupling Constants by NMR

VIII. NMR Studies of Polyradicals

IX. Conclusion

Crystal Point Group Symmetry and Microscopic Tensor Properties in Magnetic Resonance Spectroscopy

I. Tensor Properties of Microregions in Crystals

II. Symmetry Related Tensors i

III. Some Properties of Observable Tensor Projections ( )

IV. Degeneracy of Symmetry-Related Tensors

V. Experimental Determination of Tensors i

VI. Determination of Crystal Symmetry from Symmetry-Related Tensors

Appendices

Second and Fourth Moments in NQR Spectroscopy for Spins with I=1

I. Introduction

II. Second Moments for Like Spins I=1

III. Contribution to the Second Moment for Spins I=1 from Unlike Spins

IV. Fourth Moment for Equivalent Nuclei with Spins I=1

V. Examples

Appendices

Author Index

Subject Index