The Magic Angle Hopping experiment was developed by Bax et al to separate the isotropic contributions of the chemical shift while preserving the anisotropic contributions in a separate dimension. This...The Magic Angle Hopping experiment was developed by Bax et al to separate the isotropic contributions of the chemical shift while preserving the anisotropic contributions in a separate dimension. This is accomplished by rotating the sample in successive 120 ∘ increments about the magic angle.
If the charge distribution is symmetric, the spin,I, of the nucleus is 1/2 and the interaction of the nucleus with electric field gradients is direction independent. Most likely, the PAS of the r p an...If the charge distribution is symmetric, the spin,I, of the nucleus is 1/2 and the interaction of the nucleus with electric field gradients is direction independent. Most likely, the PAS of the r p and r e will not coincide with the lab frame and instead should be expressed by the principle axis system of angles \( \theta_p , \phi_p, \theta_e\) as denoted in the figure above.
