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Chapter 16

Advanced Nuclear Magnetic Resonance Spectroscopy

¹H RMN de moléculas conformacionalmente flexibles: resolución temporal
¹H RMN de moléculas conformacionalmente flexibles: resolución temporal
At room temperature, the chair conformer of cyclohexane undergoes rapid ring flipping between two equivalent chair conformers at a rate of approximately ...
¹H RMN de moléculas conformacionalmente flexibles: RMN de temperatura variable
¹H RMN de moléculas conformacionalmente flexibles: RMN de temperatura variable
The axial and equatorial protons in cyclohexane can be distinguished by performing a variable-temperature NMR experiment. In this process, except for one ...
¹H RMN de protones lábiles: resolución temporal
¹H RMN de protones lábiles: resolución temporal
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 RMN de protones lábiles: Sustitución de deuterio (²H)
¹H RMN de protones lábiles: Sustitución de deuterio (²H)
This lesson illustrates the role of deuterium substitution in simplifying the NMR spectrum of compounds comprising labile protons. One method employed is ...
Mejora de la Sobrecarga Nuclear (NOE)
Mejora de la Sobrecarga Nuclear (NOE)
Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically ...
Núcleos Insensibles Mejorados por Transferencia de Polarización (INEPT)
Núcleos Insensibles Mejorados por Transferencia de Polarización (INEPT)
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and ...
Técnicas de Doble Resonancia: Visión General
Técnicas de Doble Resonancia: Visión General
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or ...
RMN bidimensional (2D): descripción general
RMN bidimensional (2D): descripción general
The 1D NMR spectrum of large and complex molecules like natural products has complicated splitting patterns and overlapping signals, which can be easily ...
RMN 2D: Visión general de las técnicas de correlación homonuclear
RMN 2D: Visión general de las técnicas de correlación homonuclear
Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations ...
RMN 2D: Espectroscopía de correlación homonuclear (COSY)
RMN 2D: Espectroscopía de correlación homonuclear (COSY)
Homonuclear correlation spectroscopy, or COSY, is a 2-dimensional NMR technique that provides information about coupled protons. Typically, the geminal ...
RMN 2D: Visión general de las técnicas de correlación heteronuclear
RMN 2D: Visión general de las técnicas de correlación heteronuclear
Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an ...
RMN 2D: Espectroscopia de correlación cuántica heteronuclear simple (HSQC)
RMN 2D: Espectroscopia de correlación cuántica heteronuclear simple (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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