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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 56,
  • Issue 2,
  • pp. 243-249
  • (2002)

Spectral Editing of Carbon Thirteen Hexopyranose Ring Nuclei by One-Dimensional NMR Extended Distortionless Enhancement by Polarization Transfer Experiments

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Abstract

This paper reports application of the one-dimensional <sup>13</sup>C NMR "extended" distortionless enhancement by polarization transfer (DEPT) editing method to the determination of hexopyranose ring <sup>13</sup>C nuclei. Relative spatial arrangements of the vicinal protons in the local environment of a skeletal carbon atom are determined from the signs of intensity modulation profiles and connected with their specific positions in the ring. In combination with a computer simulation program, the "extended" DEPT sequence allows the straightforward and unambiguous assignment of the hexopyranose ring carbon atoms.

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