## Abstract The 250 MHz ^1^H NMR spectrum of L‐proline is comprehensively analysed by computer simulation for different pH values. A fast __endo__–__exo__ interconversion has already been proposed from chemical shift and coupling constant data. A critical comparison of the vicinal coupling constant
NMR investigation of proline and its derivatives. The proton magnetic resonance spectrum of L-proline at basic pH
✍ Scribed by M. Ellenberger; L. Pogliani; K. Häuser; J. Valat
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 472 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The 90 and 250 MHz proton magnetic resonance (PMR) spectra of L-proline at pH 11.7 are comprehensively analysed by computer simulation.
Coupling constant and chemical shift data are discussed in terms of fast interconversion between the endo and exo conformations. electronegativity effects, and of the anisotropy effect of the car-boxy1 group.
📜 SIMILAR VOLUMES
## Abstract The ^13^C‐NMR chemical shifts of dicyanocobyrinic acid heptamethyl ester (**1**), an important corrinoid model compound, are correlated with those of some derivatives. Isotope effects on the ^13^C chemical shifts (over two to four bonds) are observed for the 10‐deuterio and the 10,13‐di