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ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Erkki Kolehmainen +2 more
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Erkki Kolehmainen +2 more
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ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Ludger Ernst, Kerstin Ibrom
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AbstractFor Abstract see ChemInform Abstract in Full Text.
Ludger Ernst, Kerstin Ibrom
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1982
NMR spectra of many systems governed by axially symmetric second rank tensor interactions exhibit P2(cos θ) dependence on the angle 9 between the symmetry axis and the externally applied magnetic field. For the so-called "powder samples" consisting of many randomly oriented domains the resulting spectrum is the superposition of contributions from each ...
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NMR spectra of many systems governed by axially symmetric second rank tensor interactions exhibit P2(cos θ) dependence on the angle 9 between the symmetry axis and the externally applied magnetic field. For the so-called "powder samples" consisting of many randomly oriented domains the resulting spectrum is the superposition of contributions from each ...
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1986
With 100% natural abundance and a large magnetic moment, fluorine-19 NMR creates no problems in sensitivity. The range in chemical shifts is very wide over all, around 800 ppm, although most resonances of carbon-fluorine environments occur within a 300 ppm scan.
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With 100% natural abundance and a large magnetic moment, fluorine-19 NMR creates no problems in sensitivity. The range in chemical shifts is very wide over all, around 800 ppm, although most resonances of carbon-fluorine environments occur within a 300 ppm scan.
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2013
Contents The chemical shift 464 Brief illustration 48.1: The δ scale 465 Example 48.1: Interpreting the NMR spectrum of ethanol 465 The origin of shielding constants 466 The local ...
Peter Atkins +2 more
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Contents The chemical shift 464 Brief illustration 48.1: The δ scale 465 Example 48.1: Interpreting the NMR spectrum of ethanol 465 The origin of shielding constants 466 The local ...
Peter Atkins +2 more
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1986
With 100% natural abundance, a spin of ½, and moderately large magnetic moment, phosphorus-31 falls into the class of ‘easy’ NMR elements. Its importance in biological processes is crucial, and in vivo measurements of 31P NMR spectra were introduced in section 7.9.
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With 100% natural abundance, a spin of ½, and moderately large magnetic moment, phosphorus-31 falls into the class of ‘easy’ NMR elements. Its importance in biological processes is crucial, and in vivo measurements of 31P NMR spectra were introduced in section 7.9.
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1986
The chemical shift range of carbon-13 resonances is so wide (more than 200 ppm for simple functional classes) that most compounds show a separate signal for each different carbon environment in the molecule; this is dramatically illustrated in the spectrum for vitamin B12 at the head of the chapter, and more modestly in the menthol spectrum in figure 5.
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The chemical shift range of carbon-13 resonances is so wide (more than 200 ppm for simple functional classes) that most compounds show a separate signal for each different carbon environment in the molecule; this is dramatically illustrated in the spectrum for vitamin B12 at the head of the chapter, and more modestly in the menthol spectrum in figure 5.
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MetaboAnalyst 5.0: narrowing the gap between raw spectra and functional insights
Nucleic Acids Research, 2021Zhiqiang Pang +2 more
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