19F nuclear magnetic resonance investigation of some benzotrifluoride derivatives
โ Scribed by Charles G Moreland; Carl L Bumgardner
- Publisher
- Elsevier Science
- Year
- 1971
- Weight
- 266 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0022-2364
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๐ SIMILAR VOLUMES
relaxation time measurements as a function of temperature in pure and NaF doped samples of PbF2 xe reported. The doped samples exhibit pronounced motional narrowing at low temperatures due to tk lligh 19F diffusivity.
The lgF nuclear magnetic relaxation times and line-widths have been measured in polycrystalline CsPbF3 imthe temperature range from -1.5D Lo +300ยฐC. The observed motional nxrowing of the NhlR line-width at low temperatures and the tempernture dependences of the rehxation times are nnalysed in terms
lsF NMR linewidth studies of polycrystalhe lead fluoride (PbF3 in the femperature range -50% to L9O"C reveal line-narrowing above -10ยฐC. This is analysed in tens of vacancy diffusion. Lead fluoride (PbFZ) is known to have o+-~orhombic structure f I] up to 200ยฐC above which it undergoes a phase trans