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Section: 8 | 15N-NMR Chemical Shifts of Major Chemical Families |
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John R. Rumble, ed., CRC Handbook of Chemistry and Physics, 103rd Edition (Internet Version 2022), CRC Press/Taylor & Francis, Boca Raton, FL.
If a specific table is cited, use the format: "Physical Constants of Organic Compounds," in CRC Handbook of Chemistry and Physics, 103rd Edition (Internet Version 2022), John R. Rumble, ed., CRC Press/Taylor & Francis, Boca Raton, FL.

15N-NMR CHEMICAL SHIFTS OF MAJOR CHEMICAL FAMILIES

Thomas J. Bruno and Paris D. N. Svoronos

The following table contains 15N-NMR chemical shifts of various organic nitrogen compounds. Chemical shifts are expressed relative to different standards (NH3, NH4Cl, CH3NO2, NH4NO3, HNO3, etc.) and are interconvertible. Chemical shifts are sensitive to hydrogen bonding and are solvent dependent as seen in the case of pyridine (see Footnote a below). Consequently, the reference as well as the solvent should always accompany chemical shift data. All shifts are relative to ammonia unless otherwise specified (Refs. 1–16). A section of “miscellaneous” data gives the chemical shift of special compounds relative to unusual standards. In Ref. 16, the reader can find additional details, correlation charts, and spin-spin coupling ranges.

The first part of the table is arranged in order of decreasing range of chemical shift. Column definitions for the table are as follows.

Column heading Definition
δ range Chemical shift range for 15N-NMR, in ppm relative to NH3 unless otherwise noted
Family Family of compounds that exhibit chemical shift specified in left-most column
Example Example from the family of compounds
δ of N atom Chemical shift range for 15N-NMR for example compound, in ppm relative to NH3 unless otherwise noted

References

  1. Levy, G. C., and Lichter, R. L., Nitrogen-15 Nuclear Magnetic Resonance Spectroscopy, John Wiley and Sons, New York, 1979.
  2. Yoder, C. H., and Schaeffer, C. D., Jr., Introduction to Multinuclear NMR, Benjamin/Cummings, Menlo Park, CA, 1987.
  3. Duthaler, R. O., and Roberts, J. D., J. Am. Chem. Soc. 100, 4969, 1978. [https://doi.org/10.1021/ja00484a008]
  4. Duthaler, R. O., and Roberts, J. D., J. Am. Chem. Soc. 100, 3889, 1978. [https://doi.org/10.1021/ja00480a038]
  5. Kozerski, L., and von Philipsborn, W., Org. Magn. Res. 17, 306, 1981. [https://doi.org/10.1002/mrc.1270170418]
  6. Duthaler, R. O., and Roberts, J. D., J. Am. Chem. Soc. 100, 3882, 1978. [https://doi.org/10.1021/ja00480a037]
  7. Duthaler, R. O., and Roberts, J. D., J. Magn. Res. 34, 129, 1979. [https://doi.org/10.1016/0022-2364(79)90036-2]
  8. Psota, L., Franzen-Sieveking, M., Turnier, J., and Lichter, R. L., Org. Magn. Res. 11, 401, 1978. [https://doi.org/10.1002/mrc.1270110808]
  9. Subramanian, P. K., Chandra Sekara, N., and Ramalingam, K., J. Org. Chem. 47, 1933, 1982. [https://doi.org/10.1021/jo00349a020]
  10. Schuster, I. I., and Roberts, J. D., J. Org. Chem. 45, 284, 1980. [https://doi.org/10.1021/jo01290a016]
  11. Kupce, E., Liepins, E., Pudova, O., and Lukevics, E., J. Chem. Soc., Chem. Commun., 581, 1984. [https://doi.org/10.1039/C39840000581]
  12. Allen, M., and Roberts, J. D., J. Org. Chem. 45, 130, 1980. [https://doi.org/10.1021/jo01289a025]
  13. Brownlee, R. T. C., and Sadek, M., Magn. Res. Chem. 24, 821, 1986. [https://doi.org/10.1002/mrc.1260240917]
  14. Dega-Szafran, Z., Szafran, M., Stefaniak, L., Brevard, C., and Bourdonneau, M., Magn. Res. Chem. 24, 424, 1986. [https://doi.org/10.1002/mrc.1260240507]
  15. Lambert, J. B., Shurvell, H. F., Verbit, L., Cooks, R. G., and Stout, G. H., Organic Structural Analysis, MacMillan, New York, 1976.
  16. Bruno, T. J., and Svoronos, P. D. N., CRC Handbook of Basic Tables for Chemical Analysis – Data-Driven Methods and Interpretation, Fourth Edition, CRC Press/Taylor & Francis, Boca Raton, FL, 2021. [https://doi.org/10.1201/b22281]
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