About: Deuterium NMR

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Deuterium NMR is NMR spectroscopy of deuterium (2H or D), an isotope of hydrogen. Deuterium is an isotope with spin = 1, unlike hydrogen-1, which has spin = 1/2. The term deuteron NMR, in direct analogy to proton NMR, is also used. Deuterium NMR has a range of chemical shift similar to proton NMR but with poor resolution, due to the smaller magnitude of the magnetic dipole moment of the deuteron relative to the proton. It may be used to verify the effectiveness of deuteration: a deuterated compound will show a strong peak in deuterium NMR but not proton NMR.

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  • Deuterium NMR is NMR spectroscopy of deuterium (2H or D), an isotope of hydrogen. Deuterium is an isotope with spin = 1, unlike hydrogen-1, which has spin = 1/2. The term deuteron NMR, in direct analogy to proton NMR, is also used. Deuterium NMR has a range of chemical shift similar to proton NMR but with poor resolution, due to the smaller magnitude of the magnetic dipole moment of the deuteron relative to the proton. It may be used to verify the effectiveness of deuteration: a deuterated compound will show a strong peak in deuterium NMR but not proton NMR. Deuterium NMR spectra are especially informative in the solid state because of its relatively small quadrupole moment in comparison with those of bigger quadrupolar nuclei such as chlorine-35, for example. This allows for the whole spectrum to be excited with practically achievable pulses of a few microseconds in duration. However, since the natural abundance of 2H is only 0.016%, the sample must usually be isotope enriched with 2H to achieve a sufficiently strong signal. For a given C-D moiety, the quadrupolar splitting in the 2H NMR spectrum depends in a simple way on the angle between the C-D bond and the applied static magnetic field. Thus, 2H NMR can probe orientation distributions in partially ordered deuterated polymers. Changes in C-D bond orientation due to molecular motions have pronounced effects on the spectral line shape. One example is the use of deuterium NMR to study lipid membrane phase behavior. (en)
  • La RMN du deutérium est la spectroscopie RMN du deutérium (2H ou D), un isotope de l'hydrogène. Le deutérium est un isotope avec spin = 1, contrairement au proton qui est spin = 1/2. La RMN du deutérium a une plage de déplacement chimique similaire à la RMN du proton mais avec une moins bonne résolution. Elle peut être utilisée pour vérifier l'efficacité d'une deutération : un composé deutéré montrera un pic en RMN du deutérium mais pas en RMN du proton. La spectroscopie RMN du deutérium est assez facile à mener puisque chaque sonde possède un canal deutérium pour locker la fréquence de base et un canal proton. Il suffit de locker sur le proton et de détecter le deutérium pour obtenir un spectre du deutérium. (fr)
  • 重溶媒(じゅうようばい、deuterated solvent)は、溶媒分子に含まれる水素原子の一部または全部を重水素に置き換えた溶媒のこと。「重水素化溶媒」と呼ばれることもある。 (ja)
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  • 重溶媒(じゅうようばい、deuterated solvent)は、溶媒分子に含まれる水素原子の一部または全部を重水素に置き換えた溶媒のこと。「重水素化溶媒」と呼ばれることもある。 (ja)
  • Deuterium NMR is NMR spectroscopy of deuterium (2H or D), an isotope of hydrogen. Deuterium is an isotope with spin = 1, unlike hydrogen-1, which has spin = 1/2. The term deuteron NMR, in direct analogy to proton NMR, is also used. Deuterium NMR has a range of chemical shift similar to proton NMR but with poor resolution, due to the smaller magnitude of the magnetic dipole moment of the deuteron relative to the proton. It may be used to verify the effectiveness of deuteration: a deuterated compound will show a strong peak in deuterium NMR but not proton NMR. (en)
  • La RMN du deutérium est la spectroscopie RMN du deutérium (2H ou D), un isotope de l'hydrogène. Le deutérium est un isotope avec spin = 1, contrairement au proton qui est spin = 1/2. La RMN du deutérium a une plage de déplacement chimique similaire à la RMN du proton mais avec une moins bonne résolution. Elle peut être utilisée pour vérifier l'efficacité d'une deutération : un composé deutéré montrera un pic en RMN du deutérium mais pas en RMN du proton. (fr)
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  • Deuterium NMR (en)
  • RMN du deutérium (fr)
  • 重溶媒 (ja)
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