17O chemical shifts
β Scribed by Traficante, Daniel D.
- Book ID
- 101275959
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 66 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1043-7347
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π SIMILAR VOLUMES
Natural-abundance 17 0 NMR spectra have been measured for twenty one oxiranes. Their chemical shifts covering a 100 ppm range were interpreted in terms of the paramagnetic S-and diamagnetic y-effects. In addition, throughspace orbital interaction between the ethylenic II and the Walsh orbitals of th
17O chemical shifts were measured in 40 enamines activated in the b-position by CxO, COO, NO 2 , SO and groups. Data for the oxygen-containing series of o-hydroxyacyl aromatics are also included for com-SO 2 parison. Intramolecular hydrogen bonding in the enamines is discussed in terms of the accept
Two-dimensional "O,'H chemical shift correlation experiments were performed by polarization transfer via the 'J(0H) coupling in 2-hydroxymethyltetrahydrofuran and diethylene glycol monomethyl ether, and also via different 'f(0H) couplings in methyl formate. The experiments were most useful in the di
## Abstract Sumβoverβstates perturbation and finite perturbation calculations, within the βSolvatonβ model, are presented for the variation of some ^17^O and ^19^F chemical shifts as a function of the dielectric constant of the medium. In general, the nuclear screening and charge are predicted to i
## Abstract An analysis of ^17^O carbonyl chemical shifts of 50 substituted benzaldehydes leads to an empirical equation, Ξ΄~cal~(^17^O) = 564.0 + Ξ£Ξ__o__ + Ξ£Ξ__m__ + Ξ£Ξ__p__ + __C__, for calculating ^17^O chemical shifts. This equation is based on a linear regression analysis using 11 substituent p