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Broadband inversion for MAS NMR with single-sideband-selective adiabatic pulses
- Source :
- Journal of Chemical Physics, Journal of Chemical Physics, American Institute of Physics, 2011, 134, pp.024117. ⟨10.1063/1.3521491⟩
- Publication Year :
- 2011
-
Abstract
- We explain how and under which conditions it is possible to obtain an efficient inversion of an entire sideband family of several hundred kHz using low-power, sideband-selective adiabatic pulses, and we illustrate with some experimental results how this framework opens new avenues in solid-state NMR for manipulating spin systems with wide spinning-sideband (SSB) manifolds. This is achieved through the definition of the criteria of phase and amplitude modulation for designing an adiabatic inversion pulse for rotating solids. In turn, this is based on a framework for representing the Hamiltonian of the spin system in an NMR experiment under magic angle spinning (MAS). Following earlier ideas from Caravatti et al. [J. Magn. Reson. 55, 88 (1983)], the so-called ``jolting frame'' is used, which is the interaction frame of the anisotropic interaction giving rise to the SSB manifold. In the jolting frame, the shift modulation affecting the nuclear spin is removed, while the Hamiltonian corresponding to the RF field is frequency modulated and acquires a spinning-sideband pattern, specific for each crystallite orientation. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3521491]
- Subjects :
- Magnetic Resonance Spectroscopy
General Physics and Astronomy
010402 general chemistry
01 natural sciences
Amplitude modulation
symbols.namesake
Organoselenium Compounds
Magic angle spinning
Organometallic Compounds
Physical and Theoretical Chemistry
Compatible sideband transmission
Adiabatic process
Spin (physics)
Terbium
ComputingMilieux_MISCELLANEOUS
Physics
Sideband
Condensed matter physics
Molecular Structure
010405 organic chemistry
[CHIM.MATE]Chemical Sciences/Material chemistry
Reference Standards
0104 chemical sciences
symbols
Atomic physics
Hamiltonian (quantum mechanics)
Phase modulation
Subjects
Details
- ISSN :
- 10897690 and 00219606
- Volume :
- 134
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- The Journal of chemical physics
- Accession number :
- edsair.doi.dedup.....582fdcb91ade1585c8d8a385492cddf5