Molecular motion in phases II and III of CsHSO4 by static NMR and MAS NMR
| Autor: | Minsurk Hyung, Ae Ran Lim |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Deuterium NMR
Nuclear magnetic resonance Carbon-13 NMR satellite Chemistry General Physics and Astronomy Transverse relaxation-optimized spectroscopy Nuclear magnetic resonance spectroscopy Nuclear magnetic resonance crystallography Fluorine-19 NMR Physical and Theoretical Chemistry Carbon-13 NMR Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Chemical Physics. 459:59-64 |
| ISSN: | 0301-0104 |
| DOI: | 10.1016/j.chemphys.2015.07.025 |
| Popis: | To better elucidate the nature of the phase transitions and to obtain a better understanding of their molecular motion, we studied their NMR spectra, the spin–lattice relaxation time T 1 in the laboratory frame, and the spin–lattice relaxation time T 1 ρ in the rotating frame for 1 H and 133 Cs in CsHSO 4 , by static NMR and MAS NMR, respectively. In addition, the activation energies E a for the molecular motion of 1 H and 133 Cs, which were determined from the temperature dependence of the T 1 and T 1 ρ , were compared with those from previously reported NMR data. It was found that the NMR results for CsHSO 4 can have different physical properties depending on the material state. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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