Static nuclear susceptibility

M0 is responsible for a small static nuclear paramagnetic susceptibility, but the nuclear susceptibility is virtually undetectable at room temperature in the presence of the diamagnetic susceptibility from paired electrons in the molecule, which is about four orders of magnitude larger. Although the static nuclear susceptibility has been detected for hydrogen at very low temperatures, this type of measurement is impractical. 

For companson, the magnetic susceptibility absolute values of typical diamagnetic substances fall into the range 10 3 10 , which means a value much larger than the static nuclear magnetic susceptibility. 

The application of a static electric field polarizes the electronic charge distribution and leads to changes in molecular magnetic susceptibility and nuclear... 

Correspondingly, the specific sensitivity parameters can be introduced diamagnetic susceptibility as the response under applied magnetic field, static dipole polarizability that accounts for the electronic cloud deformation under applied electric perturbation and the chemical hardness associated with the compactness of the electronic cloud by the nuclear influence, and possible applied electric perturbation. 

Figure 2 Magnetic dipole field outside a sphere of a diamagnetic material with dipolar moment m induced by the external field Bq (A) static sample (B) rotating sample. (Reproduced with permission from Wind RA and Hu JZ (2003) Magnetic susceptibility effects in nuclear magnetic resonance spectroscopy of biological objects. In Recent Research Developments in Magnetism and Magnetic Materials, vol. 1, pp. 147-169.)...

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