Fluorine multiple-pulse NBfR experiments were performed on tetrafluoro-1,34thietane (S2C2F4) in the solid state and are compared with chemical shift anisotropies obtained from the liquid crystal solution of the same compound.
A pulsed NMR investigation of 19F chemical shift anisotropy in single crystals of fluorapatite
β Scribed by J.L. Carolan
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 537 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
ReceiM?d 6 September '1971 Measurement of the lgF NMR frequency versus orientation in single crystals of fluorapatite C&F(FO4)3 about two perpendicular crystal axes has allowed determination of all principal amponents of the nuclear saeenix tensor, which was found to be axially symmetric with uu -o1 = -84 ppm. An explanation of the negative due for oil -uI is suggested by the bonding arrangement most consistent with the crystal structure.
π SIMILAR VOLUMES
C-nmr chemical shift tensor components are reported for a 13 C-labeled Gly 1 amide carbonyl carbon of a glycylglycine (Gly 1 Gly 2 ) single crystal, a GlyGly β HNO 3 single crystal and a GlyGly β HCl β H 2 O single crystal, for which the three-dimensional crystal structures have already been determi
## Abstract ^19^F NMR chemical shifts of CF~4~ in CO~2~ under extremely dilute concentrations were precisely determined at 299.8, 314.4 and 328.9 K over a wide range of pressure between 0.4 and 33 MPa. The solventβinduced chemical shift, where the bulk magnetic susceptibility correction was made, w