Overcoming Prohibitively Large Radiofrequency Demands for the Measurement of Internuclear Distances with Solid-State NMR under Fast Magic-Angle Spinning
| Autor: | Vipin Agarwal, Kaustubh R. Mote, Perunthiruthy K. Madhu, G. Rajalakshmi, Mukul G. Jain |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
010304 chemical physics Echo (computing) Resonance 010402 general chemistry 01 natural sciences Measure (mathematics) 0104 chemical sciences Surfaces Coatings and Films Computational physics Amplitude Solid-state nuclear magnetic resonance 0103 physical sciences Materials Chemistry Magic angle spinning Physical and Theoretical Chemistry Spectral resolution Spinning |
| Zdroj: | The Journal of Physical Chemistry B. 124:1444-1451 |
| ISSN: | 1520-5207 1520-6106 |
| Popis: | Solid-state NMR is a powerful tool to measure distances and motional order parameters which are vital tools in characterizing the structure and dynamics of molecules. Magic-angle spinning (MAS), widely employed in solid-state NMR, averages out dipole-dipole couplings that carry such information. Hence, rotor-synchronized radiofrequency (RF) pulses, that interfere with MAS averaging, are commonly employed to measure such couplings. However, most of the methods that achieve this, rotational echo double resonance (REDOR) being a classic example, require RF amplitudes that are greater than or equal to the MAS frequency. While feasible at MAS frequencies |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|