Investigation of lignin models of the biphenyl type by X-ray crystallography and NMR spectroscopy
✍ Scribed by Gösta Brunow; Pirkko Karhunen; Knut Lundquist; Solveig Olson; Rolf Stomberg
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 602 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1572-8854
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The structure of N-formyl, N-acetyI-N-methyl, and N-acetyl glycosylamines has been studied by NMR spectroscopy in solution, single crystal X-ray diffractometry, and corroborated by PM3 semiempirical calculations. The results quite agree with an anti conformation around the glycosydic bond for these
## Abstract Structural studies in the solid state by X‐ray crystallography and by ^13^C and ^15^N CPMAS NMR spectroscopy carried out on a series of 2‐aminotroponimine derivatives **2**−**5** has allowed to establish the existence of hydrogen bonding and to determine the most stable tautomer. Almost
The synthesis and characterization of 1,3,10,12-tetraoxo-2,11-(diphenylsilylene)[5.5]paracyclophane obtained by reaction of 1,4-benzenedimethanol and dichlorodiphenylsilane is reported. The structure was established by mass spectrometry; 1 H, 13 C, and 29 Si NMR; and X-ray diffraction analysis.
The crystal and molecular structures of methyl a-L-fucopyranoside are reported. The sugar ring has the expected 'C, conformation. The 'H NMR spectrum at 600 MHz was fully analysed. The conformation of the pyranose ring in solution, derived from 'JHH values, was very similar to that in the crystal.