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The first solid-state 171Yb nuclear magnetic resonance spectra

X A Mao1, X Zhao, C Ye

  • 1Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences.

Solid State Nuclear Magnetic Resonance
|April 1, 1994
PubMed
Summary

This study reports the first solid-state nuclear magnetic resonance (NMR) experiments on ytterbium-171 (171Yb) in RbYbI3. Researchers determined key chemical shielding tensor components and observed anisotropic relaxation behavior.

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Area of Science:

  • Solid-state chemistry
  • Nuclear Magnetic Resonance (NMR) spectroscopy
  • Materials science

Background:

  • Ytterbium-171 (171Yb) NMR spectroscopy is crucial for understanding ytterbium-containing materials.
  • Previous studies lacked detailed solid-state NMR data for 171Yb.

Purpose of the Study:

  • To report the first powder and magic-angle spinning (MAS) NMR experiments on 171Yb.
  • To characterize the solid-state NMR properties of the divalent ytterbium compound RbYbI3.

Main Methods:

  • Solid-state 171Yb NMR spectroscopy was employed.
  • Magic-angle spinning (MAS) was used to obtain high-resolution spectra.
  • Inversion-recovery experiments were conducted to study relaxation dynamics.

Main Results:

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  • A powder spectrum with axial symmetry was obtained for RbYbI3.
  • Principal components of the chemical shielding tensor were determined: sigma 11 = sigma 22 = -62 ppm and sigma 33 = 124 ppm.
  • Anisotropic relaxation was observed, with T1 parallel (298 ms) relaxing faster than T1 perpendicular (426 ms).

Conclusions:

  • The study successfully established solid-state 171Yb NMR methodology.
  • The determined NMR parameters provide valuable insights into the electronic structure and dynamics of RbYbI3.
  • This work lays the foundation for future 171Yb NMR investigations of ytterbium compounds.