Publication

Kinetic isotope effects for fast deuterium and proton exchange rates

Geoffrey Bodenhausen, Daniele Mammoli, Estel Canet Martinez, Pavel Kaderavek
2016
Journal Articles

Abstract

By monitoring the effect of deuterium decoupling on the decay of transverse N-15 magnetization in D-N-15 spin pairs during multiple-refocusing echo sequences, we have determined fast D-D exchange rates k(D) and compared them with fast H-H exchange rates k(H) in tryptophan to determine the kinetic isotope effect as a function of pH and temperature.

Official source

https://infoscience.epfl.ch/entities/publication/cb0cccd9-d064-4ddc-8531-f6d9f2474e83

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Geoffrey Bodenhausen, Daniele Mammoli, Estel Canet Martinez, Pavel Kaderavek
2016
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cb0cccd9-d064-4ddc-8531-f6d9f2474e83

About this result

Related concepts (14)

Nuclear magnetic resonance

Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus. This process occurs near resonance, when the oscillation frequency matches the intrinsic frequency of the nuclei, which depends on the strength of the static magnetic field, the chemical environment, and the magnetic properties of the isotope involved; in practical applications with static magnetic fields up to ca.

Nuclear Overhauser effect

The nuclear Overhauser effect (NOE) is the transfer of nuclear spin polarization from one population of spin-active nuclei (e.g. 1H, 13C, 15N etc.) to another via cross-relaxation. A phenomenological definition of the NOE in nuclear magnetic resonance spectroscopy (NMR) is the change in the integrated intensity (positive or negative) of one NMR resonance that occurs when another is saturated by irradiation with an RF field. The change in resonance intensity of a nucleus is a consequence of the nucleus being close in space to those directly affected by the RF perturbation.

Exchange rate

In finance, an exchange rate is the rate at which one currency will be exchanged for another currency. Currencies are most commonly national currencies, but may be sub-national as in the case of Hong Kong or supra-national as in the case of the euro. The exchange rate is also regarded as the value of one country's currency in relation to another currency. For example, an interbank exchange rate of 131 Japanese yen to the United States dollar means that ¥131 will be exchanged for or that will be exchanged for ¥131.

Related publications (32)

Kinetic isotope effects for fast deuterium and proton exchange rates

Graph Chatbot

129Xe Dynamic Nuclear Polarization Demystified: The Influence of the Glassing Matrix on the Radical Properties

Deuterated TEKPol Biradicals and the Spin-Diffusion Barrier in MAS DNP

Long-Distance Coherent Propagation of High-Velocity Antiferromagnetic Spin Waves