title: Matrix-free synthesis of spin crossover micro-rods showing a large hysteresis loop centered at room temperature.
abstract: An original simple homogeneous acid medium was used to synthesize polymer/surfactant-free acicular micro-rod particles (10-40 μm long by 0.1-0.3 μm diameter) of the novel [Fe(Htrz)3](CF3SO3)2 complex. The study of the spin crossover properties reveals a rare 50 K hysteretic behavior perfectly centered at room temperature accompanied by a pronounced thermochromism effect, purple in the low spin state and white in the high spin state.
authors.affiliation: Laboratoire de Chimie de Coordination, CNRS UPR-8241 and Université de Toulouse, UPS, INP, F-31077 Toulouse, France. lionel.salmon@lcc-toulouse.fr Azzedine.Bousseksou@lcc-toulouse.fr.
authors.forename: Haonan
authors.initials: H
authors.lastname: Peng
authors.forename: Gábor
authors.initials: G
authors.lastname: Molnár
authors.forename: Lionel
authors.initials: L
authors.lastname: Salmon
authors.forename: Azzedine
authors.initials: A
authors.lastname: Bousseksou