Technical details are given for the successful operation of CRAMPS techniques to obtain high-resolution proton NMR spectra of solids. Matters addressed include probe construction, tuning procedures, optimization of pulses, spectral calibration and referencing. In practice, the MREV-8 sequence is pre
Combined Rotation and Multiple Pulse Spectroscopy (CRAMPS)
β Scribed by P. Burum, Douglas
- Book ID
- 102805122
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 788 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1043-7347
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π SIMILAR VOLUMES
## Abstract __When applying multiple refocusing pulses to characterize the crossβcorrelated relaxation of heteronuclear multiple quantum coherence 2__N~x~H~x~ __in biomolecules, the unavoidable effects of pulse imperfections are compensated by the scalar couplings between nitrogen atoms and protons
Using phase-coherent optical multiple-pulse spectroscopy, we report the measurement of phase-and energy-changing coIlisiona1 cross sections in I2 gas. WC obtained the following cross sections: ophase = 590 -C 110 AZ and oenergy = 227 f 12 A2. At 30 mTorr, 40% of the homogeneous is due to phase-chang