It is demonstrated that by two-dimensional spin-diffusion powder NMR spectroscopy it is possible to determine accurately relative interaction-tensor orientations. This technique is applied to the determination of the asymmetry of the potential for the proton exchange across the hydrogen bonds in cry
The qualitative probing of hydrogen bond strength by diffusion-ordered NMR spectroscopy
β Scribed by Gurpreet S Kapur; Eurico J Cabrita; Stefan Berger
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 127 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
The feasibility of using diusion-ordered NMR spectroscopy (DOSY) as a useful probe to qualitatively understand the relative strength of hydrogen bonds between various components in a mixture and a ligand in non-aqueous solutions has been demonstrated. 1 H-detected DOSY and 31 P-detected DOSY were used.
π SIMILAR VOLUMES
Artemisinin (QHS) is a natural drug with a very low solubility in water. To improve its availability in hydrophilic media, it was solubilized in micellar dispersions of octanoyl-6-O-ascorbic acid (ASC8), a relatively novel surfactant that combines surface activity with powerful performance as radica