31P Solid-State NMR Study of Coals Derivatized with Phosphorus Reagents
โ Scribed by Erdmann, K.; Mohan, T.; Verkade, J. G.
- Book ID
- 126935652
- Publisher
- American Chemical Society
- Year
- 1995
- Tongue
- English
- Weight
- 553 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0887-0624
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๐ SIMILAR VOLUMES
Phosphorus-31 powder NMR spectra and high-resolution MAS spectra have been obtained for a number of stabilized phosphorus ylids under conditions of high-power proton decoupling and cross-polarization. The 31P CP/MAS spectra are compared to those obtained from isotropic solutions. The variation of ch
## Abstract Solidโstate CP/MAS ^31^P NMR spectra were measured for the following unsaturated phosphorusโnitrogenโsulfur ring systems: 1,5โR~4~P~2~N~4~S~2~ (R = Me, Et, Ph), 1,5โPh~4~P~2~N~4~S~2~Ph~2~, Ph~2~PN~4~S~3~NPPh~3~ and Ph~2~PN~3~S~2~. The isotropic solidโstate shifts correlate well with the