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Pulse Sequences to Observe NMR Coupled Relaxation in AXn Spin Systems

Russell A. Brown

Abstract

NMR pulse sequences that are modifications of the HSQC experiment are proposed to observe ${}^{13}\textrm{C}$-coupled relaxation in AX, AX$_2$, and AX$_3$ spin systems. ${}^{13}\textrm{CH}$ and ${}^{13}{\textrm{CH}}_2$ moieties are discussed as exemplary AX and AX$_2$ spin systems. The pulse sequences may be used to produce 1D or 2D proton NMR spectra.

Pulse Sequences to Observe NMR Coupled Relaxation in AXn Spin Systems

Abstract

NMR pulse sequences that are modifications of the HSQC experiment are proposed to observe -coupled relaxation in AX, AX, and AX spin systems. and moieties are discussed as exemplary AX and AX spin systems. The pulse sequences may be used to produce 1D or 2D proton NMR spectra.
Paper Structure (12 sections, 9 equations, 8 figures, 1 table)

This paper contains 12 sections, 9 equations, 8 figures, 1 table.

Table of Contents

  1. Introduction
  2. Carbon-Proton Multiple Quantum Relaxation Pulse Sequence
  3. Proton Longitudinal Relaxation Pulse Sequence
  4. Proton Transverse Relaxation Pulse Sequence
  5. Carbon Transverse Relaxation Pulse Sequence
  6. Proton-Proton Multiple Quantum Relaxation Pulse Sequence
  7. Discussion
  8. Conclusion
  9. Supplemental Materials
  10. Author Contact Information
  11. Appendix
  12. References

Figures (8)

  • Figure 1: Carbon-Proton Multiple Quantum Relaxation Pulse Sequence
  • Figure 2: Proton Longitudinal Relaxation Pulse Sequence
  • Figure 3: Proton Transverse Relaxation Pulse Sequence
  • Figure 4: Carbon Transverse Relaxation Pulse Sequence
  • Figure 5: Proton-Proton Multiple Quantum Relaxation Pulse Sequence
  • ...and 3 more figures