Accurate determinations of one-bond 13C–13C couplings in 13C-labeled carbohydrates
✍ Scribed by Azurmendi, Hugo F.; Freedberg, Darón I.
- Book ID
- 125445551
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- English
- Weight
- 460 KB
- Volume
- 228
- Category
- Article
- ISSN
- 1090-7807
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## Abstract Endocyclic one‐bond ^13^C^13^C spin–spin coupling constants in a series of cubane derivatives were recorded. The values measured using the INADEQUATE pulse sequence were found to be insensitive to the nature of the substituent, fall in a narrow range (27–30 Hz) and are comparable to va
It has been observed that one-bond 13C-13C coupling constants are almost invariant with C-C-C bond angles between tetrahedral and 127" for hydrocarbons where the central atom is a CH2 group. An empirical quadratic equation is obtained which relates lJCC with the internuclear C-C-C angle, '9. The rec
Structural analysis of carbohydrates in solution has de-An empirical method was proposed recently ( 14) that predicts the magnitudes and signs of 2 J CCC and 2 J COC values pended heavily on the interpretation of vicinal 1 H-1 H spin couplings ( 3 J HH ) which can be related to molecular H-C-in carb