The differential magnetic relaxation behaviours of slightly distorted triangular dodecahedral dysprosium analogues in a type of cyano-bridged 3d-4f zig-zag chain compounds.

A class of cyano-bridged 3d-4f zig-zag chain compounds, {RE[TM(CN)] (PNO)(HO)}·(HO) {RE = Y, TM = [Fe] (1); RE = Dy, TM = [Fe] (2), Co (3)}, have been synthesized and characterized by single-crystal X-ray diffraction. The rare earth ions in these compounds are situated in a slightly distorted triangular dodecahedral (D) coordination environment. The magnetic properties of compounds 1-3 have been comparatively studied in detail.