Nuclear magnetic resonance first-order spectra

We present a solid-state nuclear magnetic resonance (NMR) experiment that allows the observation of a high-resolution two-dimensional heteronuclear correlation (2D HETCOR) spectrum between aluminum and phosphorous in aluminophosphate molecular sieve VPI-5. The experiment uses multiple quantum magic angle spinning (MQMAS) spectroscopy to remove the second order quadrupolar broadening in Al nuclei. The magnetization is then transferred to spin-1/2 nuclei of P via cross polarization (CP) to produce for the first time isotropic resolution in both dimensions. 

Fig. 8.—The Partial, H Nuclear Magnetic Resonance Spectrum of Sucrose Octaacetate (8) in Solution in Acetone-rid, With a Diagrammatic Representation of the First-order Assignment of the n-Glucose Protons is Shown in A. [The set of INDOR traces (B, C, D, and E) was obtained by sequentially monitoring transitions 1, 8, 5, and 3.]...

Molecular beam resonance experiments performed on CsBr and LiBr resulted in a coarse determination of the Br nuclear magnetic moments. Pound subsequently used solution-state Br NMR experiments (a negative solid-state experiment was attempted on a single crystal of KBr) to improve the precision of both magnetic moments by nearly an order of magnitude. The first bromine SSNMR spectrum ( Br) was acquired by Pound using a single crystal of NaBr. Relative to far fewer liferature reporfs confain Br SSNMR experi-... 

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