The weighted average paramagnetic shifts are 11.8, 33.4 and 57.1 ppm for 1-Ce, 1-Pr and 1-Nd, respectively, while the calculated pNMR shifts using the XRD geometries and CASSCF-SO methods (𝛿 vdH-S para , weighted average of non-metalbound Si resonances) are -4.8, -23.6 and -13.8 ppm, for 1-Ce, 1-Pr and 1-Nd, respectively. Clearly, these values are very poorly predicted, which shows that non-trivial spin density is transferred from the metal ions beyond the first coordination sphere and that extensive active space methods would be required to approach experimental accuracy in even these simple complexes.