Nuclear magnetic resonance spin decoupling

Solid-state C variable-amplitude cross polarization magic-angle spinning (VACP/MAS) nuclear magnetic resonance (NMR) spectra were acquired for the sorbitol samples. Proton decoupling was achieved by a two-pulse phase modulation (TPPM) sequence. Identical C spectra were measured for the y-form sorbitol samples, and a representative spectrum is shown in Figure 9. [Pg.488]

Maciel, G. E., Bartuska, V. J., and Miknis, F. P. (1979). Characterization of organic material in coal by proton-decoupled C nuclear magnetic resonance with magic angle spinning. Fuel 58, 391-394. [Pg.613]

Reaction of hydrogen bromide-acetic acid with the diacetal of 5,6-an-hydro-aZZo-inositol (76) gives the meto-dibromotetrol (77) tetraacetate, crystals of which are isolable from the reaction mixture. This result is surprising because the diastereomeric anhydroinositol diacetal (96) gave, under the same conditions, only monobromo products. The structure and configuration dl(1234/56) (77) were established by variable-temperature, nuclear magnetic resonance and spin-decoupling (see p. 56). ... [Pg.39]

Eden M, Levitt MH (1999) Pulse sequence symmetries in the nuclear magnetic resonance of spinning solids application to heteronuclear decoupling. J Chem Phys 111 1511-1519... [Pg.208]

P. K. Madhu, Heteronuclear Spin Decoupling in Solid-State Nuclear Magnetic Resonance Overview and Oudook, Israel J. Chem., 2014, 54, 25. [Pg.52]

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