Journal ArticleDOI
An improved sequence for broadband decoupling: WALTZ-16
TLDR
In this paper, the effects of the proton irradiation sequence by means of a train of spin rotation operators, the overall effect at the end of the cycle being calculated by explicit matrix multiplication, the offset dependence of this proton response determined the residual splitting of the carbon-13 resonance and hence the effectiveness of the decoupling.About:
This article is published in Journal of Magnetic Resonance.The article was published on 1983-04-01. It has received 1026 citations till now. The article focuses on the topics: Decoupling (electronics) & Residual.read more
Citations
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Backbone Dynamics of a Free and a Phosphopeptide-Complexed Src Homology 2 Domain Studied by 15N NMR Relaxation
Neil A. Farrow,Ranjith Muhandiram,Alex U. Singer,Steven M. Pascal,Cyril M. Kay,Gerry Gish,Steven E. Shoelson,Tony Pawson,Julie D. Forman-Kay,Lewis E. Kay +9 more
TL;DR: Overall, higher order parameters were not found in the peptide-bound form, indicating that on average, picosecond-time-scale disorder is not reduced upon binding peptide, and the relaxation data of the SH2-phosphopeptide complex were fit with fewer exchange terms than the uncomplexed form.
Journal ArticleDOI
Heteronuclear decoupling in rotating solids
Andrew E. Bennett,Chad M. Rienstra,Michèle Auger,Michèle Auger,K. V. Lakshmi,K. V. Lakshmi,Robert G. Griffin +6 more
TL;DR: In this article, a simple two pulse phase modulation (TPPM) scheme was proposed to reduce the residual linewidths arising from insufficient proton decoupling power in double resonance magic angle spinning (MAS) experiments.
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An Improved Broadband Decoupling Sequence for Liquid Crystals and Solids
TL;DR: It is found that a stepwise variation of the phase angle in the TPPM sequence offers even better results, and the application of this new method to a liquid crystalline compound and a solid, L-tyrosine hydrochloride, is reported.
Journal ArticleDOI
Sensitivity-enhanced two-dimensional heteronuclear shift correlation NMR spectroscopy
Ad Bax,Sankaran Subramanian +1 more
TL;DR: In this paper, a simple method that alleviates the dynamic range problem and that facilitates the suppression of signals from protons that are not coupled to the lowy nucleus is described, where the low-y nucleus was assumed to be 13C.
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Correlation of proton and nitrogen-15 chemical shifts by multiple quantum NMR☆
TL;DR: In this paper, the correlation of 1H and 15N chemical shifts based on zero and double quantum NMR is discussed. And the indirect determination of nitrogen shifts from the proton signals provides a dramatic gain in sensitivity over direct observation of 15N signals, and examples are given of applications of the methods to samples with natural abundance 15N concentration and to a sample of 0.7 mM 65% 15N enriched tRNA in H2O.
References
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Journal ArticleDOI
Coherent Averaging Effects in Magnetic Resonance
U. Haeberlen,J. S. Waugh +1 more
TL;DR: In this paper, a theory is developed to describe the slow component of the transient decay of transverse spin magnetization, and the central component of slow-passage absorption spectrum, of a system of spins which is subjected to a periodic and cyclic perturbation.
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Fourier Transform Study of NMR Spin-Lattice Relaxation by "Progressive Saturation"
Ray Freeman,Howard D. W. Hill +1 more
TL;DR: In this paper, a steady state is established where there is a dynamic balance between the effect of the pulses and spin relaxation, and the deviation of the intensity of the free induction signal from its thermal equilibrium value is an exponential function of the pulse interval with time constant equal to the spin-lattice relaxation time.
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