A method for measurement of spin-spin couplings with sub-mHz precision using zero- to ultralow-field nuclear magnetic resonance.

  title={A method for measurement of spin-spin couplings with sub-mHz precision using zero- to ultralow-field nuclear magnetic resonance.},
  author={Alexander Wilzewski and Samer Afach and John W. Blanchard and Dmitry Budker},
  journal={Journal of magnetic resonance},

Zero-Field J-spectroscopy of Quadrupolar Nuclei

Zero- to ultralow-field (ZULF) nuclear magnetic resonance (NMR) is a version of NMR that allows studying molecules and their transformations in the regime dominated by intrinsic spin-spin

Invited Review Article: Instrumentation for nuclear magnetic resonance in zero and ultralow magnetic field.

We review experimental techniques in our laboratory for nuclear magnetic resonance (NMR) in zero and ultralow magnetic field (below 0.1 μT) where detection is based on a low-cost, non-cryogenic,

Design and implementation of a J-coupled spectrometer for multidimensional structure and relaxation detection at low magnetic fields.

Investigations of room-temperature relaxation dynamics of 13C-methanol show that sample dilution can be used in lieu of sample heating to acquire spectra with linewidths comparable to high-tem temperature spectra, and results indicate that the T1 and T2 mechanisms are governed by both the proton exchange rate and the dissolved oxygen in the sample.

High-resolution methods for the measurement of scalar coupling constants.

Zero-Field NMR of Urea: Spin-Topology Engineering by Chemical Exchange

This study investigates an example biomolecule with a complex J-coupling network—urea, a key metabolite in protein catabolism—and demonstrates ways of simplifying its zero- field spectra by modifying spin topology, paving the way for zero-field NMR detection of complex biomolecules, particularly in biofluids with a high concentration of water.

Zero- to Ultralow-Field NMR Spectroscopy of Small Biomolecules.

Nuclear magnetic resonance (NMR) spectroscopy is a well-established analytical technique used to study chemicals and their transformations. However, high-field NMR spectroscopy necessitates advanced



High-resolution zero-field NMR J-spectroscopy of aromatic compounds.

We report the acquisition and interpretation of nuclear magnetic resonance (NMR) J-spectra at zero magnetic field for a series of benzene derivatives, demonstrating the analytical capabilities of

Near-zero-field nuclear magnetic resonance.

It is shown that the presence of very small magnetic fields results in splitting of the zero-field NMR lines, imparting considerable additional information to the pure zero- field spectra.

High-sensitivity atomic magnetometer unaffected by spin-exchange relaxation.

A K magnetometer is demonstrated in which spin-exchange relaxation is completely eliminated by operating at high K density and low magnetic field, extending a previous theoretical analysis of spin exchange in low magnetic fields to arbitrary spin polarizations.

Multiplets at zero magnetic field: the geometry of zero-field NMR.

This work provides a formal description of zero-field spin systems with truncated scalar couplings while also emphasizing visualization based on a geometric model, and the theoretical results are in good agreement with experimental spectra that exhibit second-order shifts and splittings.

Determination of the spin-spin coupling constant of the HD isotopologue of hydrogen for the estimate of existence of nonelectromagnetic spin-dependent interaction

A new experimental value Jpd = 43.115(9) Hz of the spin-spin coupling constant in the HD isotopologue of hydrogen has been obtained. It does not coincide with the value Jpd = 43.31(5) Hz found

Constraints on short-range spin-dependent interactions from scalar spin-spin coupling in deuterated molecular hydrogen.

A comparison between existing nuclear magnetic resonance measurements and calculations of the scalar spin-spin interaction (J coupling) in deuterated molecular hydrogen yields stringent constraints

Indirect Spin-Spin Coupling Constants in the Hydrogen Isotopologues.

The agreement of the experimental and theoretical results is improved when proper treatment of the influence of nuclear relaxation on the NMR spectrum is applied, but there is a minor discrepancy between experiment and theory, exceeding the estimated error bars.