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Pure Shift 2D NMR Spectroscopy
2023This chapter introduces pure shift NMR spectroscopy and shows how it can be combined with 2D methods to simplify spectra and aid interpretation. Typically, pure shift NMR is used to produce a spectrum that contains only chemical shift information in the 1H dimension, with signal overlap caused by wide multiplets removed or greatly reduced.
Ralph W. Adams, Laura Castañar
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Science, 2003
Multidimensional Fourier transform methods can simplify and manipulate magnetic resonance spectra, helping to determine the structures of large biomolecules. Researchers are also exploiting the shorter wavelengths of visible and infrared light to determine instantaneous molecular structures.
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Multidimensional Fourier transform methods can simplify and manipulate magnetic resonance spectra, helping to determine the structures of large biomolecules. Researchers are also exploiting the shorter wavelengths of visible and infrared light to determine instantaneous molecular structures.
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2023
Written by active investigators in the field, this book describes state-of-the-art methods that can accelerate the acquisition of 2D NMR spectra in solution-state NMR. The acquisition of fast multi-dimensional NMR data has motivated numerous ground-breaking developments in NMR pulse sequences and associated data processing methods.
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Written by active investigators in the field, this book describes state-of-the-art methods that can accelerate the acquisition of 2D NMR spectra in solution-state NMR. The acquisition of fast multi-dimensional NMR data has motivated numerous ground-breaking developments in NMR pulse sequences and associated data processing methods.
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1986
With the use of two-dimensional (2D) nuclear magnetic resonance (NMR) experiments (Aue et al., 1976; Bax, 1982), the potentialities of NMR for studies of biopolymers can be greatly enhanced. This paper describes 2D NMR experiments which are commonly used for work with proteins and nucleic acids.
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With the use of two-dimensional (2D) nuclear magnetic resonance (NMR) experiments (Aue et al., 1976; Bax, 1982), the potentialities of NMR for studies of biopolymers can be greatly enhanced. This paper describes 2D NMR experiments which are commonly used for work with proteins and nucleic acids.
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Spectroscopy Letters, 1989
Abstract Two Dimensional COSY and HETCOR experiments have been performed on the alkaloid vindoline which allow the complete 1zH and 13C spectral assignments to be made. Proton-proton and proton-carbon coupling constants are also given.
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Abstract Two Dimensional COSY and HETCOR experiments have been performed on the alkaloid vindoline which allow the complete 1zH and 13C spectral assignments to be made. Proton-proton and proton-carbon coupling constants are also given.
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2023
In typical NMR experiments 90 percent of the time is used for doing nothing. It is necessary to wait until sufficient polarization is recovered for the next scan. Many tricks have been developed during decades of NMR spectroscopy. The first systematic study involved the use of β-pulses, i.e.
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In typical NMR experiments 90 percent of the time is used for doing nothing. It is necessary to wait until sufficient polarization is recovered for the next scan. Many tricks have been developed during decades of NMR spectroscopy. The first systematic study involved the use of β-pulses, i.e.
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Line shape considerations in ultrafast 2D NMR
Journal of Magnetic Resonance, 2004We have recently proposed and demonstrated an approach that enables the acquisition of 2D nuclear magnetic resonance (NMR) spectra within a single scan. The approach is based on spatially encoding the spins' evolution along the indirect domain with the aid of a magnetic field gradient, and subsequently decoding this information numerous times over the ...
Boaz, Shapira +3 more
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Urinary Metabolite Quantification Employing 2D NMR Spectroscopy
Analytical Chemistry, 2008Two-dimensional (2D) nuclear magnetic resonance (NMR) spectroscopy is a fairly novel method for the quantification of metabolites in biological fluids and tissue extracts. We show in this contribution that, compared to 1D 1H spectra, superior quantification of human urinary metabolites is obtained from 2D 1H-13C heteronuclear single-quantum correlation
Wolfram, Gronwald +7 more
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Progress in Hyperpolarized Ultrafast 2D NMR Spectroscopy
ChemPhysChem, 2008AbstractAn important development in the field of NMR spectroscopy has been the advent of hyperpolarization approaches, capable of yielding nuclear spin states whose value exceeds by orders‐of‐magnitude what even the highest‐field spectrometers can afford under Boltzmann equilibrium.
Mor, Mishkovsky, Lucio, Frydman
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The Analyst, 2011
Quantitative Ultrafast (UF) 2D NMR is a very promising methodology enabling the acquisition of 2D spectra in a single scan. The analytical performances of UF 2D NMR have been highly increased in the last few years, however little is known about the sensitivity of ultrafast experiments versus conventional 2D NMR.
Meerakhan, Pathan +4 more
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Quantitative Ultrafast (UF) 2D NMR is a very promising methodology enabling the acquisition of 2D spectra in a single scan. The analytical performances of UF 2D NMR have been highly increased in the last few years, however little is known about the sensitivity of ultrafast experiments versus conventional 2D NMR.
Meerakhan, Pathan +4 more
openaire +2 more sources