Publication

Two-dimensional exchange difference spectroscopy: applications to indirect observation of quadrupolar relaxation

Geoffrey Bodenhausen
1982
Journal Articles

Abstract

A novel type of difference spectroscopy is proposed to improve two-dimensional exchange spectroscopy by reducing diagonal peaks which are often dominant in complex cases such as in 2-dimensional nuclear Overhauser effect spectra of biopolymers. The diagonal peaks appear with neg. algebraic sign and amplitudes equal to the sums of all cross-peaks appearing in a column or row of the 2-dimensional exchange spectra, agreeing with the elements of the corresponding exchange matrixes. The technique is applied to the indirect observation of the quadrupolar relaxation of D. [on SciFinder (R)]

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https://infoscience.epfl.ch/entities/publication/e6d04753-02f8-428a-8b40-7c9994571a61

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Geoffrey Bodenhausen
1982
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/e6d04753-02f8-428a-8b40-7c9994571a61

About this result

Related concepts (32)

Two-dimensional nuclear magnetic resonance spectroscopy

Two-dimensional nuclear magnetic resonance spectroscopy (2D NMR) is a set of nuclear magnetic resonance spectroscopy (NMR) methods which give data plotted in a space defined by two frequency axes rather than one. Types of 2D NMR include correlation spectroscopy (COSY), J-spectroscopy, exchange spectroscopy (EXSY), and nuclear Overhauser effect spectroscopy (NOESY). Two-dimensional NMR spectra provide more information about a molecule than one-dimensional NMR spectra and are especially useful in determining the structure of a molecule, particularly for molecules that are too complicated to work with using one-dimensional NMR.

Nuclear magnetic resonance spectroscopy

Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique to observe local magnetic fields around atomic nuclei. This spectroscopy is based on the measurement of absorption of electromagnetic radiations in the radio frequency region from roughly 4 to 900 MHz. Absorption of radio waves in the presence of magnetic field is accompanied by a special type of nuclear transition, and for this reason, such type of spectroscopy is known as Nuclear Magnetic Resonance Spectroscopy.

Spectroscopy

Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter waves and acoustic waves can also be considered forms of radiative energy, and recently gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory (LIGO).

Related publications (8)

Two-dimensional exchange difference spectroscopy: applications to indirect observation of quadrupolar relaxation

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