Hypersensitive pressure-dependence of the conversion temperature of hysteretic valence tautomeric manganese–nitronyl nitroxide radical 2D-frameworks

Abstract

Valence tautomeric manganese(II)-radical lamellar compounds {[Mn₂(NITIm)₃]X}_n with NITIm a nitronyl nitroxide radical and X = ClO₄⁻ (1) or BF₄⁻ (2) show a pressure-induced increase of their conversion temperature by approximately 40 K at a mild external pressure of 0.1 GPa, shifting the transition from near room temperature to hot temperature regions.