Faster magic angle spinning reveals cellulose conformations in woods
| Autor: | Jerry C. C. Chan, Jari Sinkkonen, Hwan-Ching Tai, Hung-Chia Huang, Andres Oss, Ago Samoson, Mai-Liis Org, Eric Chung-Yueh Yuan, Shing-Jong Huang |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
02 engineering and technology Thermal treatment engineering.material Catalysis 03 medical and health sciences chemistry.chemical_compound Materials Chemistry Magic angle spinning Cellulose Spinning Conformational isomerism 030304 developmental biology Maple chemistry.chemical_classification 0303 health sciences Resolution (electron density) Metals and Alloys Glycosidic bond General Chemistry 021001 nanoscience & nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Chemical physics Ceramics and Composites engineering 0210 nano-technology |
| Zdroj: | Chemical communications (Cambridge, England). 57(34) |
| ISSN: | 1364-548X |
| Popis: | We present a first report on the detection of three different C6 conformers of cellulose in spruce, as revealed by solid-state 1H-13C correlation spectra. The breakthrough in 1H resolution is achieved by magic-angle spinning in the regime of 150 kHz. The suppression of dense dipolar network of 1H provides inverse detected 13C spectra at a good sensitivity even in natural samples. We find that the glycosidic linkages are initially more ordered in spruce than maple, but a thermal treatment of spruce leads to a more heterogeneous packing order of the remaining cellulose fibrils. |
| Databáze: | OpenAIRE |
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