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Chapter 16

Advanced Nuclear Magnetic Resonance Spectroscopy

NMR von konformationell flexiblen Molekülen: Zeitliche Auflösung
NMR von konformationell flexiblen Molekülen: Zeitliche Auflösung
At room temperature, the chair conformer of cyclohexane undergoes rapid ring flipping between two equivalent chair conformers at a rate of approximately ...
^1H-NMR von konformationell flexiblen Molekülen: NMR bei variabler Temperatur
^1H-NMR von konformationell flexiblen Molekülen: NMR bei variabler Temperatur
The axial and equatorial protons in cyclohexane can be distinguished by performing a variable-temperature NMR experiment. In this process, except for one ...
NMR labiler Protonen: Zeitliche Auflösung
NMR labiler Protonen: Zeitliche Auflösung
Protons bonded to heteroatoms such as nitrogen and oxygen exhibit a range of chemical shift values. This is due to the varying degree of hydrogen bonding ...
^1H-NMR von labilen Protonen: Deuterium (^2H)-Austausch
^1H-NMR von labilen Protonen: Deuterium (^2H)-Austausch
This lesson illustrates the role of deuterium substitution in simplifying the NMR spectrum of compounds comprising labile protons. One method employed is ...
Nukleare Overhauser-Verstärkung (NOE)
Nukleare Overhauser-Verstärkung (NOE)
Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically ...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and ...
Doppelresonanztechniken: Übersicht
Doppelresonanztechniken: Übersicht
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or ...
2D-NMR-Übersicht
2D-NMR-Übersicht
The 1D NMR spectrum of large and complex molecules like natural products has complicated splitting patterns and overlapping signals, which can be easily ...
2D-NMR: Überblick über homonukleare Korrelationstechniken
2D-NMR: Überblick über homonukleare Korrelationstechniken
Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations ...
Homonukleare Korrelationsspektroskopie (COSY)
Homonukleare Korrelationsspektroskopie (COSY)
Homonuclear correlation spectroscopy, or COSY, is a 2-dimensional NMR technique that provides information about coupled protons. Typically, the geminal ...
2D-NMR: Überblick über heteronukleare Korrelationstechniken
2D-NMR: Überblick über heteronukleare Korrelationstechniken
Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an ...
Heteronukleare Einzelquantenkorrelationsspektroskopie (HSQC)
Heteronukleare Einzelquantenkorrelationsspektroskopie (HSQC)
Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a ...
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