Position of lanthanide ion in NMR shift reagent - ligand chelates
โ Scribed by Theo Heigl; Gerald K. Mucklow
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- French
- Weight
- 220 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
In the course of studies on the stereochemistry of Tilidine *l ) and related compounds it became desirable to apply NMR shift reagents quantitatively 2-4) rather than in the widely used qualitative way.
๐ SIMILAR VOLUMES
The utility of paramagnetic lanthanide-tris-R-diketonates as pseudo-contact shift reagents in NMR-spectroscopy has first been demonstrated by HINCKLEY (1). More recently, chiral lanthanide-tris-d-3-acyl-camphorates have been applied to the direct determination of enantiomeric compositions (optical p
The conformational analysis of short polymer chains involves the use of statistical models, and their predictions must be checked against experimental information. Ytterbium-induced shifts in the "C NMR spectra of fatty acids provide a non-perturbing, straightforward method of simultaneously obtaini