Optimizing the 13C-14N REAPDOR NMR experiment: a theoretical and experimental study

Journal of Magnetic Resonance
Y BaT Gullion

Abstract

The optimum 14N pulse lengths in the 13C-14N rotational-echo adiabatic-passage double-resonance (REAPDOR) NMR experiment are determined from calculations and from experiments on samples of glycine and L-alanine. The REAPDOR experiment utilizes the adiabatic passages that 14N spins make between the 14N Zeeman energy levels during the application of a single, short 14N radiofrequency pulse. Use of a short 14N irradiation time of less than one-quarter of a rotor period ensures that the number of 14N spins that undergo more than one passage is minimized. This simplifies calculations describing 13C dipolar dephasing and provides better agreement between calculations and experiments. Recovery of the 13C-14N dipolar couplings and 14N quadrupolar coupling constants and asymmetry parameters is described.

References

Feb 1, 1992·Solid State Nuclear Magnetic Resonance·A J Vega

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Citations

Apr 28, 2001·Annual Review of Physical Chemistry·L Frydman
Jan 10, 2009·Solid State Nuclear Magnetic Resonance·J P AmoureuxQ Wang
Aug 8, 2006·Solid State Nuclear Magnetic Resonance·Robin M Orr, Melinda J Duer
Jul 21, 2017·The Journal of Physical Chemistry. B·John D Gullion, Terry Gullion
Jun 26, 2010·Physical Chemistry Chemical Physics : PCCP·Lei ChenJean-Paul Amoureux
Nov 17, 2006·Chemical Communications : Chem Comm·Zhehong Gan
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Jan 14, 2009·Journal of the American Chemical Society·Ivan HungSteven P Brown
Aug 19, 2007·The Journal of Physical Chemistry. B·Long ZhangHellmut Eckert
Jun 30, 2000·Journal of Magnetic Resonance·I Sack, S Vega
Oct 18, 2001·Journal of the American Chemical Society·S Wi, L Frydman

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