Dynamic Nuclear Magnetic Resonance Spectroscopy

Dynamic Nuclear Magnetic Resonance Spectroscopy

1st Edition - January 28, 1975

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  • Editor: Lloyd Jackman
  • eBook ISBN: 9780323143585

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Dynamic Nuclear Magnetic Resonance Spectroscopy provides an overview of the state of knowledge in dynamic nuclear magnetic resonance (DNMR) spectroscopy. The early chapters describe the theoretical basis and practical techniques which have or will be used for extracting kinetic data from DNMR spectra. The subsequent chapters provide reviews of the many areas in which DNMR spectroscopy has been applied. Key topics covered include nuclear exchange processes; band-shape analysis; application of nonselective pulsed NMR experiments: diffusion and chemical exchange; spin-spin relaxation time determination; rotation about single and double bonds in organic molecules; and dynamic molecular processes in inorganic and organometallic compounds. Also discussed are studies on stereochemical nonrigidity in organometallic and metal carbonyl compounds; fluxional allyl complexes; carbonium ion rearrangements; and proton transfer processes. It is hoped that this volume will provide a literature guide, source book, and progress report which will be helpful to all those who will continue or will begin work in this field.

Table of Contents

  • List of Contributors


    1 Time-Dependent Magnetic Perturbations

    I. Background

    II. Dipole-Dipole Interactions

    III. Chemical Exchange

    IV. Coherent Time-Dependent Fields

    V. Accomplishments and Prospects


    2 Delineation of Nuclear Exchange Processes

    I. Introduction

    II. Dynamic Stereochemistry of Symmetric Molecules

    III. NMR Differentiable Reactions

    IV. Examples


    3 Band-Shape Analysis

    I. Introduction

    II. Classical Theory

    III. Quantum-Mechanical Theory

    IV. Practical Band-Shape Analysis

    V. Treatment of Dynamic Data

    VI. Conclusion


    4 Application of Nonselective Pulsed NMR Experiments—Diffusion and Chemical Exchange

    I. Introduction

    II. Diffusion and Flow

    III. Chemical Exchange Rates from Spin-Echo Studies

    IV. Chemical Exchange Rates from Rotating Frame Relaxation


    5 Determination of Spin-Spin Relaxation Times in High-Resolution NMR

    I. Introduction

    II. Definitions

    III. Experimental Methods

    IV. Concluding Remarks


    6 Rotation about Single Bonds in Organic Molecules

    I. Introduction

    II. Rotation about sp3-sp3 Carbon-Carbon Single Bonds

    III. Rotation about sp3-sp2 Carbon-Carbon Single Bonds

    IV. Rotation about sp2-sp2 Carbon-Carbon Single Bonds

    V. Rotation about Carbon-Nitrogen Single Bonds

    VI. Rotation about Miscellaneous Single Bonds


    7 Rotation about Partial Double Bonds in Organic Molecules

    I. Introduction

    II. Amides and Related Systems (R1R2N—COX)

    III. Amidines, Thionamides, Selenamides, and Related Compounds [R—C(=X)—N<; X = N—R', S, Sc]

    IV. Enamines

    V. Enolates, Enol Ethers and Thio Enol Ethers, Acylides, Diazoketones, and Aminoboranes

    VI. Potentially Aromatic Systems

    VII. Cumulenes

    VIII. Inversion versus Rotation—Imines and Related Systems


    8 Dynamic Molecular Processes in Inorganic and Organometallic Compounds

    I. Introduction

    II. Recent Advances in Instrumentation and Technique

    III. Applications

    IV. Conclusion


    9 Stereochemically Nonrigid Metal Chelate Complexes

    List of Abbreviations

    I. Introduction

    II. Four-Coordinate Systems

    III. Six-Coordinate Systems

    IV. Systems of Higher Coordination Number

    V. Summary


    10 Stereochemical Nonrigidity in Organometallic Compounds


    I. Cyclopolyenylmetal Systems

    II. Cyclopolyenemetal Systems

    III. Systems with Two Independent Metal Atoms on One Ring

    IV. Scrambling of Differently Bonded Rings

    V. Fluxionality in the Solid State

    VI. Miscellaneous Systems

    VII. Some Nonfluxional Molecules, or the Dog in the Night-Time


    11 Fluxional Allyl Complexes

    I. Introduction

    II. Bonding and Movements of the Allyl Group in Metal-Allyl Compounds

    III. Survey of Reactions Occurring for Metal-π-Allyl Compounds

    IV. Fluxional Metal-σ-Allyl and Ionic Metal-Allyl Compounds

    V. Concluding Remarks


    12 Stereochemical Nonrigidity in Metal Carbonyl Compounds

    I. Introduction

    II. Permutational and Geometrical Isomerizations

    III. Bridge-Terminal Exchanges and Scrambling of CO Groups

    Note Added in Proof


    13 Dynamic NMR Studies of Carbonium Ion Rearrangements

    I. Introduction

    II. Generation of Stable Carbonium Ion Solutions

    III. Types of Carbonium Ion Rearrangements Studied


    14 Conformational Processes in Rings

    I. Introduction

    II. Definitions of Conformational Processes

    III. Conformational Energy Calculations

    IV. Experimental Data and General Discussion


    15 Proton Transfer Processes

    I. Introduction

    II. Rate of Proton Exchange

    III. Kinetic Analysis

    IV. Comparison with Relaxation Methods

    V. Representative Results and Conclusions

    VI. Concluding Remarks


    Subject Index

Product details

  • No. of pages: 676
  • Language: English
  • Copyright: © Academic Press 1975
  • Published: January 28, 1975
  • Imprint: Academic Press
  • eBook ISBN: 9780323143585

About the Editor

Lloyd Jackman

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