where 𝛘 is the magnetic susceptibility tensor in c.g.s. e.m.u. (cm 3 mol -1 ), 𝒙, 𝒚 and 𝒛 are the Cartesian coordinates of the nucleus in question (in meters, where the Ln ion defines the origin), 𝒓 is the distance between the nucleus and the lanthanide ion (in meters), and tr() indicates a matrix trace. We approximate 𝛘 by using CASSCF-SO calculations in OpenMolcas. The resulting calculated shifts are reasonably accurate for all H resonances, which are indeed significantly distal (3 or 4 bonds) to the Ln ions, suggesting that their contact shifts are effectively zero. Calculated shifts for other nuclei are less accurate, although the calculated C shifts of 1-Sm are in reasonable agreement with experiment.