Decoupling residual dipolar coupling between 13C and14N spin pairs in CPMAS NMR
โ Scribed by Robin M. Orr; Melinda J. Duer
- Book ID
- 108275621
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 398 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0926-2040
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956, Buenos Aires (1 113), Argentina I3C CP/MAS NMR spectra of nitrogen-containing compounds often show complex signals when recorded at low field strengths. This effect is due to the 13C, '"N residual dipolar coupling which is not averaged to zero by magic-angle spinning. Solidstate 13C NMR spectra
Four simple and sensitive HNCO-based methods for measurement of 1J(C'Calpha), 1J(NCalpha) and 2J(NCalpha) coupling constants in protein main chains are presented. Three of these experiments enable the simultaneous measurement of 1J(C'Calpha), 1J(NCalpha) and 2J(NCalpha) couplings. Exploitation of th