13C MAS NMR and 1H-29Si and 1H-13C heteronuclear correlation study of model xylooligosaccharides
✍ Scribed by Schraml, Jan; Petráková, Eva; Hirsch, Ján; Čermák, Jan; Chvalovský, Václav; Teeaar, Raivo; Lippmaa, Endel
- Book ID
- 120593092
- Publisher
- UOCHB
- Year
- 1987
- Tongue
- English
- Weight
- 807 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0010-0765
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A simple method for obtaining 1 H-13 C HETCOR solid-state NMR spectra reflecting only medium-and long-range 1 H-13 C correlation peaks is presented. By dephasing the magnetization of protons directly bonded to a 13 C nucleus, the short-range correlation peaks, which contain limited structural inform
Chemical shift and scalar coupling constant data have been obtained for the 'H, -C and "Si nuclei in dyl, methallyl, cis-and trans-croty1, cis-2-methyI-2-butenyl and 3-methyl-2-butenyl derivatives of trimethylsilane.
Order parameters describing conformational exchange processes on the nanosecond to microsecond timescale can be obtained from powder patterns in solid-state NMR (SSNMR) experiments. Extensions of these experiments to magic-angle spinning (MAS) based high-resolution experiments have been demonstrated