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nmr experiments
Nucleus cross-polarization technique in a rotating frame of reference is analyzed as applied to NMR experiments with sample magic-angle spinning.
      
The transitions between the superfluid and nonsuperfluid glass states can be triggered by small magnetic fields and by the change of the tipping angle of the magnetization in NMR experiments.
      
Recent NMR experiments allow us to discuss two regimes of the orientational disorder that have different NMR properties.
      
The states also have different properties in transverse NMR experiments.
      
Manyspin clusters and correlations are created faster in such an experiment than in usual MQ NMR experiments and can be used for the investigation of the many-spin dynamics of nuclear spins in solids.
      
Detailed 13C magic angle spinning NMR experiments in the latter phase indicate sp3 bondings among the carbon atoms, whereas the relative (sp2/sp3) intensities, together with x-ray data, suggest the C60 polymerization to be a [2+2] cycloaddition.
      
Multiple quantum NMR experiments on 7Li confirm the presence of lithium clusters, as observed by x-ray diffraction in the high temperature phase, also at lower temperatures.
      
Phase-shift presaturation for water peak suppression in biomolecular NMR experiments
      
1H-NMR and13C-NMR assignments of 12-oleanene-3,11-dione (compound 1) were completely described for the first time through conventional 1D NMR and 2D shift-correlated NMR experiments using1H-1HCOSY, HMQC, HMBC techniques.
      
We report on13C MAS NMR experiments in the low temperature phase of Rb1C60.
      
In analogy to small suspended particles in an oscillating magnetic field the anisotropy field fixed to the rotating atomic lattice of the cluster acts on the cluster magnetization like an rf field in NMR experiments.
      
These results are in good agreement with NMR experiments on by Stern et al.
      
63Cu-NMR experiments of Knight shift and relaxation time T1 have been performed on the two-leg spin ladders of a Sr2Ca12Cu24O41 single crystal at several pressures up to the critical pressure for the stabilization of a superconducting ground state.
      
We explicitly show the relation to the rate memory parameter which recently has been introduced to quantify the mobility fluctuations as observed via multidimensional NMR experiments.
      
We find a stripe phase with a crossover from diagonal to vertical stripes at increasing doping in the range 0.01 ?δ? 0.2 and increasing Coulomb potential U, similarly to recent NMR experiments on La2 - xSrxCuO4.
      
Toward direct determination of conformations of protein building units from multidimensional NMR experiments III
      
The 2D 1Hα-13Cα as well as the 3D 1Hα-13Cα-13Cβ chemical shift - chemical shift plots appear to be of special importance for direct determination of conformations of protein building units from multidimensional NMR experiments.
      
On the basis of our nuclear magnetic resonance (NMR) experiments, we conclude that mercury does not promote the direct nonenzymatic peroxidation of LDL, like copper and iron.
      
With the advent of modern, two-dimensional NMR techniques arose methodologies for assigning the1H resonances based on 2D, homonuclear1H NMR experiments.
      
NMR experiments, carried out on this molecule in the presence of Mg2+, showed details of folding which have never been observed before.
      
 

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