13C n.m.r. spectroscopic characterization of products of solvolysis of coals by N-methyl-2-pyrrolidinone
✍ Scribed by A.P. Legrand; H. Sfihi; D. Sderi; René Gruber; Denise Cagniant
- Book ID
- 107756836
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 469 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Magic-angle 13C n.m.r. spectra have been obtained for a series of vitrinite concentrates. Proper modification of the cross-polarization pulse sequence allows separation of protonated and nonprotonated carbon resonances. This technique is used to determine the relative fraction of nonprotonated
These trisaccharide glycosides and their hepta-acetates have been studied by '3C-n.m.r. spectroscopy.
13C solid-state n.m.r, spectra of samples of 14 coals and their pyridine residues representative of the three depositions in the Shanxi province of the People's Republic of China are described in detail. The results confirm those of previous infrared spectroscopy in showing these vitrinite-inertinit