Use of Spin Echo Magic Angle Spinning1H NMR in Reaction Monitoring in Combinatorial Organic Synthesis

1996 ◽  
Vol 61 (8) ◽  
pp. 2911-2914 ◽  
Author(s):  
Ravi S. Garigipati ◽  
Bruce Adams ◽  
Jerry L. Adams ◽  
Susanta K. Sarkar
Keyword(s):  
Organic Synthesis ◽  
Spin Echo ◽  
Magic Angle ◽  
Reaction Monitoring

Use of Spin Echo Magic Angle Spinning1H NMR in Reaction Monitoring in Combinatorial Organic Synthesis

1996 ◽  
Vol 61 (15) ◽  
pp. 5190-5190
Author(s):  
Ravi S. Garigipati ◽  
Bruce Adams ◽  
Jerry L. Adams ◽  
Susanta K. Sarkar
Keyword(s):  
Organic Synthesis ◽  
Spin Echo ◽  
Magic Angle ◽  
Reaction Monitoring

Satellite transition rotational resonance of homonuclear quadrupolar spins: magic-angle effect on spin-echo decay and inversion recovery

2003 ◽  
Vol 376 (1-2) ◽  
pp. 75-82 ◽  
Author(s):  
Hyung-Tae Kwak ◽  
Parthasarathy Srinivasan ◽  
John Quine ◽  
Dominique Massiot ◽  
Zhehong Gan
Keyword(s):  
Spin Echo ◽  
Inversion Recovery ◽  
Magic Angle ◽  
Rotational Resonance ◽  
Angle Effect ◽  
Magic Angle Effect ◽  
And Inversion ◽  
Satellite Transition

scholarly journals Materials Characterisation by Nuclear Quadrupole Interaction

1994 ◽  
Vol 49 (1-2) ◽  
pp. 320-328 ◽  
Author(s):  
T.J. Bastow
Keyword(s):  
Solid State Nmr ◽  
Materials Science ◽  
Spin Echo ◽  
Nuclear Quadrupole Interaction ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Quadrupole Coupling ◽  
Nmr Techniques ◽  
Nuclear Quadrupole ◽  
Angle Spinning

Abstract The power of solid state NMR to characterise solids by determining the nuclear quadrupole coupling of the constituent nuclei is demonstrated for a number of com pounds of current interest in a materials science laboratory. Recent results are presented for the nuclei 17O , 23Na, 27Al, 39K, 71Ga, 91Zr, 93Nb, and 139La. These were derived using a variety of FT NMR techniques including static, magic angle spinning and frequency stepped spin echo NMR spectroscopy.

Ist 91Zr-Festkörper-Kernresonanzspektroskopie praktikabel?

1995 ◽  
Vol 50 (1) ◽  
pp. 90-94 ◽  
Author(s):  
P. Hartmann ◽  
G. Scheler
Keyword(s):  
Solid State Nmr ◽  
Dead Time ◽  
Chemical Shifts ◽  
Spin Echo ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Local Site ◽  
Quadrupole Coupling ◽  
Angle Spinning ◽  
Time Limitations

Abstract91Zr solid state NMR spectra have been observed for samples possessing different zirconium local-site environments (e.g. phosphates, fluorides). Depending on the quadrupole coupling, different NMR experiments have been utilized. In case of weak quadrupole coupling, magic angle spinning (MAS) is suitable. Otherwise, spin echo techniques are necessary to overcome “acoustic ringing’’ and receiver dead-time limitations. Using the step echo method, the detection of the very broad 91Zr signals is not limited by non-uniform spectral excitation. The obtained 91Zr chemical shifts range from -246 ppm to 208 ppm, the quadrupole coupling frequencies from 50 kHz to 2.7 MHz..

Magic Angle Spinning NMR for Reaction Monitoring and Structure Determination of Molecules Attached to Multipin Crowns

1997 ◽  
Vol 62 (3) ◽  
pp. 538-539 ◽  
Author(s):  
Jefferson Chin ◽  
Brad Fell ◽  
Michael J. Shapiro ◽  
John Tomesch ◽  
James R. Wareing ◽  
...  
Keyword(s):  
Structure Determination ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Reaction Monitoring ◽  
Angle Spinning
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