| TOSNER, Z., M.J. BRANDL, J. BLAHUT, S.J. GLASER and B. REIF. Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences. Science advances. New York: American Association for the Advancement of Science, 2021, vol. 7, No 42, p. 1-10. ISSN 2375-2548. Available from: https://dx.doi.org/10.1126/sciadv.abj5913. |
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@article{1842565,
author = {Tosner, Z. and Brandl, M.J. and Blahut, J. and Glaser, S.J. and Reif, B.},
article_location = {New York},
article_number = {42},
doi = {http://dx.doi.org/10.1126/sciadv.abj5913},
keywords = {AMPLITUDE CROSS-POLARIZATION; NUMERICAL-SIMULATION; DOUBLE-RESONANCE; SPECTROSCOPY; RESOLUTION; DESIGN; PULSES; WAVE; NCO},
language = {eng},
issn = {2375-2548},
journal = {Science advances},
title = {Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences},
url = {https://www.science.org/doi/10.1126/sciadv.abj5913},
volume = {7},
year = {2021}
}
TY - JOUR
ID - 1842565
AU - Tosner, Z. - Brandl, M.J. - Blahut, J. - Glaser, S.J. - Reif, B.
PY - 2021
TI - Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences
JF - Science advances
VL - 7
IS - 42
SP - 1-10
EP - 1-10
PB - American Association for the Advancement of Science
SN - 23752548
KW - AMPLITUDE CROSS-POLARIZATION
KW - NUMERICAL-SIMULATION
KW - DOUBLE-RESONANCE
KW - SPECTROSCOPY
KW - RESOLUTION
KW - DESIGN
KW - PULSES
KW - WAVE
KW - NCO
UR - https://www.science.org/doi/10.1126/sciadv.abj5913
N2 - Dipolar recoupling is a central concept in the nuclear magnetic resonance spectroscopy of powdered solids and is used to establish correlations between different nuclei by magnetization transfer. The efficiency of conventional cross-polarization methods is low because of the inherent radio frequency (rf) field inhomogeneity present in the magic angle spinning (MAS) experiments and the large chemical shift anisotropies at high magnetic fields. Very high transfer efficiencies can be obtained using optimal control-derived experiments. These sequences had to be optimized individually for a particular MAS frequency. We show that by adjusting the length and the rf field amplitude of the shaped pulse synchronously with sample rotation, optimal control sequences can be successfully applied over a range of MAS frequencies without the need of reoptimization. This feature greatly enhances their applicability on spectrometers operating at differing external fields where the MAS frequency needs to be adjusted to avoid detrimental resonance effects.
ER -
TOSNER, Z., M.J. BRANDL, J. BLAHUT, S.J. GLASER and B. REIF. Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences. \textit{Science advances}. New York: American Association for the Advancement of Science, 2021, vol.~7, No~42, p.~1-10. ISSN~2375-2548. Available from: https://dx.doi.org/10.1126/sciadv.abj5913.
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