Variable-pressure dynamic NMR studies: effects of paramagnetic metal ions on NMR parameters in nonexchanging systems

Nmr Studies of Paramagnetic Molecules

In this paper a résumé is given on nmr studies of paramagnetic molecules with specific reference to manganic and ferric dithiocarbamates. The temperature dependence of these spectra is discussed, and the isotropic proton hyperfine interaction constants are examined, yielding information about the electronic configuration in these molecules. The nmr results are complemented by magnetic susceptib...

1H NMR techniques in studies of transport of paramagnetic ions in multicellular systems.

Two different pulse sequences used in 1H NMR spectroscopy termed free induction decay amplitude recovery (FIDAR) and spin-echo recovery (SER) were applied to studies of transport of paramagnetic ions in multicellular systems. The molar relaxivity of several paramagnetic species (Fe3+, Co2+, Ni2+, Cu2+, Mn2+, MnEDTA2-, dextran-magnetite) in water solutions was measured at 32 MHz resonance freque...

Paramagnetic effects on the NMR spectra of isotropic bicelles with headgroup modified chelator lipids and metal ions.

We characterized the paramagnetic effects of nine metal ions on NMR signals of isotropic bicelles with headgroup-modified lipids. We found that Mn(2+), Gd(3+) and Dy(3+) show evidence for influencing NMR signals on the surface more than inside and on the disc edge, providing distance information in the bilayers.

NMR detection of protein 15N spins near paramagnetic lanthanide ions.

Figure S1. Scheme of magnetization transfer pathways in the out-and-back NZ-exchange experiment. The letters ijk denote the path with state i at the beginning of the experiment, state j during t1 evolution, and k during detection (t2 and t3). The numbers below denote the amount of NZ magnetization of each path as fraction of the total NZ magnetization (Mtot) present at the beginning of τm1. Rel...

NMR of paramagnetic proteins