Microsecond Time Scale Proton Rotating-Frame Relaxation under Magic Angle Spinning

2017 ◽  
Vol 121 (25) ◽  
pp. 6117-6130 ◽  
Author(s):  
Petra Rovó ◽  
Rasmus Linser
Keyword(s):  
Time Scale ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Rotating Frame ◽  
Rotating Frame Relaxation ◽  
Angle Spinning

scholarly journals Refocusing CSA during magic angle spinning rotating-frame relaxation experiments

2018 ◽  
Vol 296 ◽  
pp. 130-137 ◽  
Author(s):  
Eric G. Keeler ◽  
Keith J. Fritzsching ◽  
Ann E. McDermott
Keyword(s):  
Magic Angle Spinning ◽  
Magic Angle ◽  
Rotating Frame ◽  
Relaxation Experiments ◽  
Rotating Frame Relaxation ◽  
Angle Spinning

Selective Homonuclear Polarization Transfer in the Tilted Rotating Frame under Magic Angle Spinning in Solids

1997 ◽  
Vol 127 (2) ◽  
pp. 206-216 ◽  
Author(s):  
K. Takegoshi ◽  
Kaoru Nomura ◽  
Takehiko Terao
Keyword(s):  
Magic Angle Spinning ◽  
Polarization Transfer ◽  
Magic Angle ◽  
Rotating Frame ◽  
Angle Spinning

Magic angle spinning and static oriented sample NMR studies of the relaxation in the rotating frame of membrane peptides

2005 ◽  
Vol 122 (19) ◽  
pp. 194908 ◽  
Author(s):  
Christophe Farès ◽  
Jin Qian ◽  
James H. Davis
Keyword(s):  
Magic Angle Spinning ◽  
Magic Angle ◽  
Rotating Frame ◽  
Nmr Studies ◽  
Oriented Sample ◽  
Membrane Peptides ◽  
Angle Spinning

Fast magic angle spinning solid-state 51V NMR characterization of vanadium oxide catalysts supported on TiO2

1994 ◽  
Vol 91 ◽  
pp. 909-915 ◽  
Author(s):  
D Courcot ◽  
P Bodart ◽  
C Fernandez ◽  
M Rigole ◽  
M Guelton
Keyword(s):  
Solid State ◽  
Vanadium Oxide ◽  
Magic Angle Spinning ◽  
Oxide Catalysts ◽  
Magic Angle ◽  
51V Nmr ◽  
Nmr Characterization ◽  
Angle Spinning ◽  
Fast Magic Angle Spinning

Pulse Shaped Dynamic Nuclear Polarization Under Magic Angle Spinning

2019 ◽  
Author(s):  
ASIF EQUBAL ◽  
Kan Tagami ◽  
Songi Han
Keyword(s):  
Electron Spin ◽  
Lattice Relaxation ◽  
Magic Angle Spinning ◽  
Spin Lattice Relaxation ◽  
Magic Angle ◽  
Total Electron ◽  
Spin Lattice ◽  
Maximum Benefit ◽  
Selective Saturation ◽  
Angle Spinning

In this paper, we report on an entirely novel way of improving the MAS-DNP efficiency by shaped μw pulse train irradiation for fast and broad-banded (FAB) saturation of the electron spin resonance. FAB-DNP achieved with Arbitrary Wave Generated shaped μw pulse trains facilitates effective and selective saturation of a defined fraction of the total electron spins, and provides superior control over the DNP efficiency under MAS. Experimental and quantum-mechanics based numerically simulated results together demonstrate that FAB-DNP significantly outperforms CW-DNP when the EPR-line of PAs is broadened by conformational distribution and exchange coupling. We demonstrate that the maximum benefit of FAB DNP is achieved when the electron spin-lattice relaxation is fast relative to the MAS frequency, i.e. at higher temperatures and/or when employing metals as PAs. Calculations predict that under short T<sub>1e </sub>conditions AWG-DNP can achieve as much as ~4-fold greater enhancement compared to CW-DNP.

Applications of high resolution magic angle spinning NMR spectroscopy in tumor metabonomics research

2013 ◽  
Vol 32 (9) ◽  
pp. 1024-1027
Author(s):  
Yu LI ◽  
Jing-xia ZHAO ◽  
Gen-jin YANG ◽  
Wei ZHANG ◽  
Zi-yang LOU
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Angle Spinning

High Resolution Magic Angle Spinning NMR in Combinatorial Chemistry

2001 ◽  
Vol 4 (4) ◽  
pp. 333-351 ◽  
Author(s):  
G. Lippens ◽  
R. Warrass ◽  
J. Wieruszeski ◽  
P. Rousselot-Pailley ◽  
G. Chessari
Keyword(s):  
High Resolution ◽  
Combinatorial Chemistry ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Angle Spinning

Wideline 2H -NMR Spectroscopy and Imaging of Solids

1994 ◽  
Vol 49 (1-2) ◽  
pp. 19-26 ◽  
Author(s):  
B. Blümich
Keyword(s):  
Nmr Spectroscopy ◽  
Excitation Power ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
2H Nmr ◽  
Stochastic Excitation ◽  
2H Nmr Spectroscopy ◽  
Spatially Inhomogeneous ◽  
Recent Developments ◽  
Angle Spinning

Abstract Recent developments, focussing on reduction of the rf excitation power by stochastic excitation, on improvements in sensitivity and excitation bandwidth by magic angle spinning, and on combining wideline spectroscopy with spatial resolution for investigations o f spatially inhomogeneous objects are reviewed.

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