based on the simultaneous selection in a single scan of both Recently, many new high-resolution NMR experiments orthogonal magnetization components present during an using pulsed field gradients (PFG) for coherence selection evolution period, and when applied to 1D experiments, no have been proposed
Selective 1D 1H → 13C → 13C polarization transfer experiments for small organic molecules
✍ Scribed by Leszek Poppe; Stefan Gröger; Jeff Zablocki
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 56 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Selective polarization transfer from proton to adjacent carbon was accomplished by either selective crosspolarization or selective refocused-INEPT. Magnetization was transferred in the subsequent step to remote carbons separated by one, two or three bonds. The acquired data were processed by a new symmetrization protocol resulting in the signal-to-noise ratio enhancement by a factor of p 2.
📜 SIMILAR VOLUMES
## Abstract Selective INEPT (INAPT) experiments were used to correlate the nitrogen‐ and carbon‐bound hydrogens of nucleosides with ^13^C resonances via ^2^__J__(C, H) and ^3^__J__(C, H). Such experiments are useful as part of a strategy to distinguish the imino hydrogens of uridine and thymidine,
## Abstract Two‐dimensional ^1^H‐detected {^1^H, ^13^C} shift correlation spectra of oligosaccharides usually suffer from low resolution in the ^13^C frequency domain. This drawback can be overcome through a simple modification of the HSQC experiment, namely by implementing a selective ^13^C 180° p
In paramagnetic heme proteins, it is often problematic to make the reduced (usually diamagnetic) state lack isotropic shifts proton resonance assignments for heme substituents that do not and are therefore difficult to examine by NMR spectroscopy. have large isotropic shifts and consequently lie und