Effects of molecular mobility on high resolution solid state NMR spectra: model systems

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It is the intention of this paper to point to some of the problems due to molecular motion and to suggest a few solutions to those problems. A few examples will be presented of model systems which demonstrate the effects of motion on the NMR spectroscopy and a very qualitative example of severe spectral distortion in fulvic acids will be shown. In the following discussions we will use concepts derived from the oft repeated thermodynamic picture shown in figure 1. When dealing with a homogeneous, pure compound this picture is sufficient but in a heterogeneous mixture, it is likely that ... continued below

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Pages: 34

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Earl, W.L. January 1, 1986.

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Description

It is the intention of this paper to point to some of the problems due to molecular motion and to suggest a few solutions to those problems. A few examples will be presented of model systems which demonstrate the effects of motion on the NMR spectroscopy and a very qualitative example of severe spectral distortion in fulvic acids will be shown. In the following discussions we will use concepts derived from the oft repeated thermodynamic picture shown in figure 1. When dealing with a homogeneous, pure compound this picture is sufficient but in a heterogeneous mixture, it is likely that there will be different compounds and different domains all with slightly different versions of figure 1 with poor thermodynamic contact between them. Thus optimal conditions for cross polarization in one domain may be totally inappropriate for another. 59 refs., 10 figs.

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Pages: 34

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NTIS, PC A03/MF A01; 1.

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  • 8. Rocky Mountain regional meeting of the American Chemical Society: liquid membranes - theory and applications, Denver, CO, USA, 8 Jun 1986

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  • Other: DE86013856
  • Report No.: LA-UR-86-2310
  • Report No.: CONF-860645-1
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5470633
  • Archival Resource Key: ark:/67531/metadc1092148

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1986

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  • Feb. 10, 2018, 10:06 p.m.

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  • May 22, 2018, 1:40 p.m.

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Earl, W.L. Effects of molecular mobility on high resolution solid state NMR spectra: model systems, article, January 1, 1986; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1092148/: accessed June 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.