Fig. 1.

Physical properties of Mn(taa) at the temperature- induced SST. a There is a sharp peak in the heat capacity C_p vs temperature T at the SST in Mn(taa). The inset shows the corresponding entropy change ΔS. b The dielectric constant $ϵ\prime$ as a function of temperature also shows a sharp transition at the SST above which Curie-Weiss-like paraelectric behavior continues up to room temperature in our data and the literature^26,31. c A molecule of Mn(taa) with Mn³⁺ in a quasi-octahedral Nitrogen (green) environment. A seventh non-bonded Nitrogen is shown in blue. The standard errors due to random noise are smaller than the line widths