New Aspects of Solid State High Resolution NMR of Protons

  • U. Haeberlen
Conference paper

Abstract

The state-of-the-art of measuring proton shielding tensors in single crystals by multiple pulse techniques is outlined. Aromatic systems are chosen as an example. The experimental results are strongly affected by intermolecular shielding contributions. Features characteristic of the shielding of aromatic systems emerge after taking intermolecular contributions into account.

Keywords

Aromatic System Terephthalic Acid Solid State Proton Magnetic Resonance Quadrupole Coupling Constant Principal Axis System 
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References and Footnotes

  1. 1.
    J.S. Waugh, L.M. Huber and U. Haeberlen, Phys.Rev.Lett 20, 180 (1968).ADSCrossRefGoogle Scholar
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    S. Vega. T. Shattuck and A. Pines, Phys.Rev.Lett. 37, 43 (1976).ADSCrossRefGoogle Scholar
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    L.M. Ryan, R.C. Wilson and B.C. Gerstein, J.Chem.Phys. 67, 4310 (1977).ADSCrossRefGoogle Scholar
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    S. Vega, T. Shattuck and A. Pines, Ann.Rep. LBL 6016, Univ.of Calif. 1976.Google Scholar
  5. 5.
    Driving double quantum transitions solves the problem for spin-1 nuclei with small quadrupole coupling constants, see ref. 2.Google Scholar
  6. 6.
    S. Aravamudhan has been responsible for the PMDA work. The determination of the proton (7-tensors in PMDH is part of the Ph.D. work of H. Feucht. T. Wendling dared to tackle terephthalic acid.Google Scholar
  7. 7.
    S. Aravamudhan, U. Haeberlen, H. Irngartinger and C. Krieger, submitted to Mol.Phys.Google Scholar
  8. 8.
    The bottleneck for the full analysis is the structure of terephthalic acid. It has been reported by C.J. Brown and M. Bailey, Acta Cryst. 22, 387 (1967) but the data given for at least form II are evidently grossly in error. We intend to determine the orientations of the ring and the carboxyl groups by solid state C-13 NMR.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1979

Authors and Affiliations

  • U. Haeberlen
    • 1
  1. 1.Max-Planck-InstitutAbteilung für Molekulare PhysikHeidelbergGermany

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