Double-Quantum NMR.pdf

double_quantum_nmr_in_solids.pdf
Preview of Double-Quantum NMR
🔗 Source: pines.berkeley.edu
📊 Size: 229 KB
👤 Author: S. Vega, T. W. Shattuck, and A. Pines
⬇️ Downloads: 133

Summary

An approach to high-resolution NMR of deuterium in solids is described, using a double-quantum process to excite the m = 1 — 1 transition and monitoring the decay of coherence Q(τ). Fourier transformation yields a deuterium spectrum devoid of quadrupole broadening, and if the deuterium nuclei are dilute, the double-quantum spectrum is a high-resolution one. The technique is applied to a single crystal of oxalic acid dihydrate enriched to ~10% in deuterium, resolving the carboxyl and water deuterium shifts. The anisotropy of the chemical shielding tensor is also measured, yielding an anisotropy of the chemical shift of 60 = 32 ± 4 ppm.

Description

An approach to high-resolution NMR of deuterium in solids is described, using a double-quantum process to excite the m = 1 — 1 transition and monitoring the...

Technical Information

  • File Format: PDF
  • File Size: 229 KB
  • Pages: 4
  • Language: EN
  • Author: S. Vega, T. W. Shattuck, and A. Pines
  • Total Downloads: 133
  • Last Updated: 3 weeks ago

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