Nanoparticles of iron(II) spin-crossover

We report the synthesis of spin crossover 69 nm spherical nanoparticles of [Fe(NH2-trz)(3)](Br)(2)center dot 3H(2)O center dot 0.03(surfactant) (NH(2)trz = 4-amino-1,2.4-triazole, surfactant = Lauropal), prepared by the reverse micelle technique, which exhibit at room temperature a thermal hysteresis characterized