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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


A NMR investigation of proline and its d
✍ L. Pogliani; M. Ellenberger; J. Valat 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 855 KB

## 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

Nuclear Magnetic Resonance Spectroscopy
✍ Ernst, Ludger 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 537 KB

## 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