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31P and 13C NMR of Transition Metal Phosphine Complexes

  • Paul S. Pregosin
  • Roland W. Kunz
Conference proceedings

Part of the NMR Basic Principles and Progress / Grundlagen und Fortschritte book series (NMR, volume 16)

Table of contents

  1. Front Matter
    Pages I-IX
  2. Paul S. Pregosin, Roland W. Kunz
    Pages 1-15
  3. Paul S. Pregosin, Roland W. Kunz
    Pages 16-46
  4. Paul S. Pregosin, Roland W. Kunz
    Pages 47-55
  5. Paul S. Pregosin, Roland W. Kunz
    Pages 56-64
  6. Paul S. Pregosin, Roland W. Kunz
    Pages 65-74
  7. Paul S. Pregosin, Roland W. Kunz
    Pages 75-88
  8. Paul S. Pregosin, Roland W. Kunz
    Pages 89-144
  9. Paul S. Pregosin, Roland W. Kunz
    Pages 145-153
  10. Back Matter
    Pages 155-158

About these proceedings

Introduction

For almost a quarter of a century the words "nuclear magnetic reso­ nance" were synonymous with proton I,leasurements. During this period the literature abounded with a seemingly infinite variety of 1H NHR studies concerned primarily with carbon chemistry. Occasionally a "novel" nucleus was studied and, even in those early days, the poten- 13 14 31 19 tial offered by C, N, P and F was clearly recognized. Despite the allure, the technical difficulties involved in measuring some of these nuclei were far from trivial. Small magnetic moments and low natural abundance in combination with spin-spin coupling from other nuclei, mostly protons, resulted in a signal-to-noise problem whose severity effectively excluded the study of metal complexes with unfa­ vorable solubility characteristics. The first important breakthrough came with the advent of broad band 1H-decoupling. For example, the featureless broad 31p resonance associated with the commonly used ligand triphenyl phosphine is converted to a sharp, more readily ob­ served singlet when wide-band decoupling is employed (see Fig. 1). Despite this improvement investigation of more interesting molecules, such as catalytically active complexes was forced to await the devel­ opment of Fourier Transform methods since only with relatively rapid signal averaging methods could sufficient signal-to-noise ratios be achieved.

Keywords

Magnetische Kernresonanz Organische Phosphorverbindung carbon chemistry metals molecule phosphorus transition element transition metal Übergangselementverbindung

Authors and affiliations

  • Paul S. Pregosin
    • 1
  • Roland W. Kunz
    • 1
  1. 1.Laboratorium für anorganischeChemie der ETHZürichSwitzerland

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-642-48830-6
  • Copyright Information Springer-Verlag Berlin Heidelberg 1979
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Springer Book Archive
  • Print ISBN 978-3-642-48832-0
  • Online ISBN 978-3-642-48830-6
  • Series Print ISSN 0170-5989
  • Buy this book on publisher's site
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