An analytical approach based on the average Hamiltonian theory is proposed for efficient calculation of the MAS NMR spectra of a dipolar-coupled homonuclear spin-(1/2) pair. For this purpose a superoperator formalism is developed which allows one to describe the spectra over a broad span of sample s
Phase Sensitive Detection of 2D Homonuclear Correlation Spectra in MAS NMR
โ Scribed by G.J. Boender; S. Vega
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 108 KB
- Volume
- 133
- Category
- Article
- ISSN
- 1090-7807
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โฆ Synopsis
A pulse scheme for phase sensitive detection of two-dimensional (2D) homonuclear correlation magic angle spinning (MAS) NMR spectra is proposed. This scheme combines the time proportional phase increment phase cycling scheme and the time reversal 2D MAS experiment. This approach enables the direct detection of purely absorptive 2D MAS spectra, containing cross peaks that connect only diagonal peaks of dipolar correlated spins.
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