Publication

Accurate determination of scalar couplings by convolution of complementary two-dimensional multiplets

Geoffrey Bodenhausen
1993
Journal Articles

Abstract

The authors describe how the value of a nuclear spin coupling const. JAX can be detd. very accurately by comparing 2 complementary 2-dimensional multiplets obtained with selective correlation NMR spectroscopy (soft-COSY) and with pure in-phase correlation spectroscopy. The convolution method of J. J. Titman and J. Keeler (1990) was adapted to compare soft-COSY and PICSY multiplets. Illustrative results on the L-proline residue in cyclo-(L-Pro1-L-Pro2-D-Pro3) are presented. [on SciFinder (R)]

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https://infoscience.epfl.ch/entities/publication/964dbc67-f41f-4eb4-8d41-edbf9ee2982a

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Geoffrey Bodenhausen
1993
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/964dbc67-f41f-4eb4-8d41-edbf9ee2982a

About this result

Related concepts (20)

J-coupling

In nuclear chemistry and nuclear physics, J-couplings (also called spin-spin coupling or indirect dipole–dipole coupling) are mediated through chemical bonds connecting two spins. It is an indirect interaction between two nuclear spins that arises from hyperfine interactions between the nuclei and local electrons. In NMR spectroscopy, J-coupling contains information about relative bond distances and angles. Most importantly, J-coupling provides information on the connectivity of chemical bonds.

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).

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.

Related publications (7)

Accurate determination of scalar couplings by convolution of complementary two-dimensional multiplets

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