The conformational analysis of short polymer chains involves the use of statistical models, and their predictions must be checked against experimental information. Ytterbium-induced shifts in the "C NMR spectra of fatty acids provide a non-perturbing, straightforward method of simultaneously obtaini
Lanthanide shift reagents as an aid in the NMR analysis of the normal alcohols C6to C11
β Scribed by F. J. Smentowski; R. D. Stipanovic
- Book ID
- 112778086
- Publisher
- Springer-Verlag
- Year
- 1972
- Tongue
- English
- Weight
- 362 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0003-021X
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Much evidence has been provided for the presence of contact-term contribution to paramagnetic shifts induced by lanthanide shift reagents (1) in 'H, 13C, 14N, 19F, and 3'P NMR spectroscopy (2,3). Conspicuous effects of contact shifts (C.S .) have been observed in 13C NMR spectra of stronger Lewis ba
## Abstract The ^13^C and ^1^H spectra of a series of aromatic ketones, ethers and ketoβethers were studied using the lanthanide shift reagent (LSR) Yb(fod)~3~ and the data analyzed using the lanthanide induced shift (LIS) ratio method. Studies were carried out on phenalenone, 6βmethoxyphenalenone,