Cooperative spin crossover phenomena in [Fe(NH2trz)3](tosylate)2 nanoparticles.
Nanoparticles of the [Fe(NH(2)trz)(3)](tosylate)(2) spin crossover complex of 3-4 nm size were synthesized and dispersed in a nonionic surfactant. This colloidal system exhibits thermal spin crossover phenomena associated with a virtually first order transition. By thermal treatment the colloidal suspension can be transformed into a fibrous structure forming a gel.
Tokarev
Alexey
A
Laboratoire de Chimie de Coordination, CNRS UPR-8241 and Université de Toulouse, UPS, INP, F-31077 Toulouse, France.
Salmon
Lionel
L
Guari
Yannick
Y
Nicolazzi
William
W
Molnár
Gábor
G
Bousseksou
Azzedine
A